Independent iOS app studio. Small, fast, ad-free apps.
BugWatch — Tick & Mosquito
Evidence-based tick and mosquito bite protection for iPhone. Search about 630 EPA-registered repellents — or just pick an active ingredient and concentration off the label — and see how long it has actually been measured to protect you, cited to the study behind the number: DEET 23.8% is about 5 hours, a citronella wristband is about 15 seconds. Start a reapplication timer, arm a recurring protection schedule, check whether current weather sits in the ranges where ticks and mosquitoes are active (conditions, never a forecast), and audit the standing water that really breeds them. It emits no sound and makes no repellency claim — it gives you the evidence, you protect yourself. Free, with ads on the conditions tab only and safety guidance never paywalled; BugWatch Pro adds unlimited schedules, family profiles, a 10-day outlook, widgets and no ads.
Departly — HK Bus & Rail
One app for every Hong Kong commute. Departly plans a door-to-door trip across franchised buses, New Lantau Bus, green minibuses, heavy rail, Light Rail and trams, works out the transfers and the fare, and shows real-time arrivals refreshed automatically — the next several departures at each stop, not just one. Its get-off reminder wakes you before your stop even when the screen is locked and you are underground. For iPhone & iPad, in English, 繁體中文 and 简体中文. Free with ads; Departly Pro removes ads and unlocks the full experience.
FollowLens — Follower Insights
See exactly how your Instagram followers and following change over time — from your own official data export, on your own iPhone. FollowLens turns Instagram’s “Download your information” file into a clear picture of who followed you, who unfollowed you and who never followed you back. No login, no password, nothing leaves your device — it never touches your account, so there is nothing to get your account flagged. For iPhone & iPad. Free to download and use; FollowLens Pro removes ads and unlocks the full history.
Duara — Cycle & Couple
Understand your cycle and your patterns — and, if you choose, share a private space with your partner. Grounded in science, private by design: your logs stay yours, and partner sharing is opt-in and revocable. For iPhone & iPad. Free with ads; Duara Plus adds personalised mood and energy patterns from your own logs, symptom pattern analysis, deeper cycle reports, partner sharing and no ads.
Vaultly — Private Encrypted Album
A private, encrypted album — separate from Apple Photos. Everything you add is encrypted on your device with AES-256 and kept completely out of the one album a thumb-swipe can reach. The whole app sits behind Face ID. For iPhone & iPad. Free with ads; Vaultly Pro removes ads and syncs your vault privately across your own devices through iCloud, where everything stays encrypted.
Corynx — Device Monitor
A beautiful, native system monitor for iPhone and iPad. Corynx shows exactly what your device is doing in a clean, fast dashboard built entirely in SwiftUI — CPU load with per-core detail, the full memory breakdown (wired, active, inactive and compressed), storage, live network throughput and battery. Everything is read on-device; nothing is uploaded. Free with ads; Corynx Pro removes ads and unlocks per-core detail, the full memory and storage breakdowns and the advanced panels.
Days Counter — Countdown & Count Up
Count down to the days you can’t wait for — and count up from the ones you never want to forget. Track days until a trip, wedding, birthday, exam, retirement or due date, or days since a moment that matters, with real time-of-day precision. Show days, weeks, months, years or a full breakdown, and let birthdays and anniversaries roll forward automatically every year. For iPhone & iPad. Free with up to 3 active countdowns and an ad on the list screen; Days Counter Pro removes both.
Big Two 鋤大D — Dai Di Card Game
The classic card game — Big Two, Big Deuce, 鋤大D, 大老二 — built to teach beginners and sharpen experts. A visual guide covers the rules, card ranking and every combination; offline single-player runs from Easy to Master; and a post-game review walks you through your biggest decisions. The table assistant is the party trick: enter your hand and the cards in play in a real-life game and it tells you the strongest move and why. For iPhone & iPad. Free with a daily token top-up, optional rewarded ads, or token packs.
Kinbell — Alarms & Reminders
A gentle bell for the people you love. Set an alarm or reminder for yourself — or for a family member — and it rings on their phone at the right time. Built for the small acts of care that a shared calendar never quite handles: medication, a school run, a call home. For iPhone & iPad, with Family Sharing. Free for your own reminders, with ads; Kinbell Pro unlocks the full experience and starts with a 7-day free trial.
Vicira — Place Reminders
Location reminders for you and the people you love. Drop a pin, write a note, and Vicira alerts you the moment you get there — with a loud alarm or a quiet nudge, your choice. Share a place with a family member and they get the reminder when they arrive. For iPhone & iPad, with Family Sharing. Free with a few location reminders and ads; Vicira Pro unlocks the full experience and starts with a 7-day free trial.
Ironreach — Empire & Conquest RTS
An original medieval empire-building real-time strategy game, rebuilt for touch. Gather four resources around your Hearthhall, raise a base, advance through four Ages, and field a counter-based army through fog of war to conquer a rival Realm — in short, mobile-length matches against a computer opponent. Seven original Realms with distinct bonuses, A* pathfinding, and a strategic AI. Free with menu-only ads; Ironreach Pro removes ads and unlocks every Realm, the largest maps, the hardest AI and iCloud saves.
Onyx — Private Browser & Files
A private in-app web browser for iPhone & iPad, with tabs, ad & tracker blocking, and bookmarks and history kept on your device. Download any file you choose for offline use — long-press a link and pick “Download Linked File,” just like Safari — and it lands in a Files library with a built-in media player, folders, search, and export to Photos or Files. A Face ID vault keeps chosen files locked. Free with ads; Onyx Pro removes ads and adds iCloud sync across your devices and the private vault.
Savecove — Video Saver & Player
An in-app web browser and video saver for iPhone & iPad. Browse to a page, save videos you have the right to download, and watch them offline in a built-in player — with export to Photos or Files and optional iCloud sync. Free with ads (up to 5 saves a day at 720p); Savecove Pro removes ads and unlocks unlimited saves, up to 4K/original quality, and batch & background downloads.
Surf — Private Web Browser
A fast, private web browser for iPhone & iPad. Browse with multiple tabs, block ads and trackers, and keep your bookmarks, history, and Top Sites on your device — never on our servers. A secure-connection indicator shows when a site is encrypted, and one tap clears your data. No account, no sign-up, and nothing you browse is sent to us. Free with ads; Surf Pro removes every ad.
Coorie — Baby Monitor
Turn a spare iPhone or iPad into a private baby monitor using devices you already own. One device by the baby streams live video and sound; another on the same Apple ID watches — no pairing, no approval, end-to-end encrypted in your own iCloud. Free over home Wi‑Fi; Coorie Pro adds watch-from-anywhere, cry & motion alerts, two-way talk-back, lullabies and recording.
Rostra — Class & Billing Manager
The business manager for solo instructors — dance & ballet teachers, personal trainers, coaches, music teachers and tutors. Track students and classes, set recurring schedules and fees, take attendance with a fair cancellation policy, record your studio rent, and see exactly what each student owes this month and next — plus which classes actually make a profit. CSV import/export, PDF statements, a clean dashboard and iCloud sync, on iPhone & iPad. Free to start; Rostra Pro adds unlimited students/classes, projections, profit insights and removes ads.
Helmward — Remote Desktop
See and control your Mac at home from your iPhone, iPad, or another Mac while you travel. A private, Apple-native remote desktop with end-to-end encryption, simple ID + password pairing, and no false “commercial use” lockouts or session time limits. Free to start, supported by occasional ads; Helmward Pro makes the app completely ad-free.
Corynx — System Monitor
A beautiful, native system monitor for your Mac. Watch CPU (with per-core detail), GPU, memory, disk, network, battery and thermals — live in the menu bar and in a clean dashboard. Private by design: everything stays on your Mac, no accounts, no ads. Free, with Corynx Pro adding history & trend graphs, the detailed GPU module, full menu-bar customization and CSV export.
AdMob Monitor — Earnings & Stats
Check your Google AdMob earnings without opening a browser. Sign in with Google to see today's, yesterday's and monthly estimated revenue, per-app and per-ad-unit breakdowns, custom reports with CSV export, and progress toward your payment threshold — organised like the AdMob console so everything is where you expect. Read-only via the official AdMob API; not affiliated with Google. For iPhone & iPad. Free with ads — Pro removes ads and unlocks full history, custom reports and multiple accounts.
Vivace — Hi-Res Music Player
A high-resolution, lossless music player for audiophiles. Play the files you own — FLAC, ALAC, WAV, AIFF, DSD and more — with the true source format shown on every track, gapless playback, a 10-band equalizer, synced lyrics and CUE-sheet albums. Browse by album, artist, genre, folder and playlist. For iPhone & iPad. Free, with Vivace Pro removing ads and unlocking DSD playback, automatic online lyrics, ReplayGain, every theme and unlimited playlists.
Duplikit — Multiple App Instances
Run a second copy of the same Mac app — Claude, Slack, Chrome and more — each signed into a different account, side by side. Duplikit launches your app with its own private profile; nothing leaves your Mac. For macOS. 7-day free trial, then a simple subscription.
Windrose — Weather Radar
Live precipitation radar plus complete weather for everyone — on land, at sea, and in the air. Watch an animated radar loop to see where the rain is heading, get a colour-coded safety summary, and switch between General, Marine and Aviation modes (decoded METARs/TAFs, winds aloft, SIGMETs, waves & swell). For iPhone & iPad. Free, with Windrose Pro unlocking the aviation & marine modes, full radar nowcast and the 16-day forecast.
Star Maps — Sky & Satellite Tracker
Hold your phone up to the sky to see stars, constellations, planets, the Sun, the Moon and deep-sky objects overlaid on the real sky in augmented reality — tap anything to identify it. Track the ISS, Starlink and hundreds of bright satellites in real time and see when they fly over. For iPhone & iPad. Free with ads — Star Maps Plus unlocks fainter stars, the full satellite catalogue and flyover alerts.
Money Splitter — Split Bills with Friends
Split trip and group bills fairly. Create a trip, share a code, and everyone adds what they paid — Money Splitter works out who owes who and the fewest payments to settle up. Split equally, by exact amounts, percentages, or shares. For iPhone & iPad with iCloud sync. Free with ads.
NutriSnap — Calorie & Food Tracker
Snap a photo of your meal to log its calories and nutrients, track the calories you burn with Apple Health, and follow a personal plan for losing weight, maintaining, gaining, or building muscle. For iPhone & iPad, with private iCloud sync. No ads, no accounts, no data collection.
Pourfect — Ball Sort Puzzle
A relaxing color-sorting puzzle for iPhone & iPad. Pour balls between tubes until each holds a single color. No timer, endless always-solvable levels, unlockable themes, and helpful undo/hint/add-tube. Free with ads — a one-time purchase removes them.
Time to Wake Up — Arrival Reminder
A location alarm for the bus, train, or coach. Set your stop on a map, pick a wake-up zone, and rest — it sounds a loud alarm (or a gentle notification) the moment you're arriving. Works with the screen locked. No ads, no accounts; your location never leaves your device.
Block Bloom: Puzzle
A relaxing block puzzle for iPhone & iPad. Drag pieces onto a 9×9 grid and clear rows, columns, and 3×3 boxes for satisfying combos and streaks. Earn coins to unlock colorful themes. Free with ads — a one-time purchase removes them.
Blackout Camera
A camera for the dark. Shoot photos and video while the screen stays completely black — tap Screen Off, or let it black out the moment recording starts. Red night-vision mode and full manual controls (ISO, shutter, focus, white balance) for astrophotography and low-light work. No ads, no accounts, no data collection.
SentryBlack — Stealth CCTV
Turn your iPhone, iPad, or Mac into a hidden security camera. It records with a fully black screen so intruders never notice it's watching, detects motion, and streams live — end-to-end encrypted — to your other devices. Your video stays on your own devices and your own iCloud, never a third-party server.
Dashward — Dash Cam
Turn your iPhone into an always-on dash cam: front & rear recording, loop storage, GPS-stamped clips, and a parking sentry that watches your car while you're away.
Body Clock — Jet Lag Planner
Beat jet lag before it beats you. Tell it your route and dates and it works out whether to shift your body clock at all, then builds a day-by-day plan of when to seek light, sleep, and take melatonin — grounded in circadian science. Optionally reads Apple Health to personalise. No ads, no accounts, no data collection.
Lumacut — Video Editor
A multi-clip video editor for iPhone and iPad. Trim, change speed, grade color, pixelate anything, and automatically blur a moving face or object. Export up to lossless ProRes — all on device. Pro adds tracking, 4K/lossless export, and iCloud sync.
Accompanist
Music tempo control for dance. Slow any song down to learn the steps — pitch stays in key so it still sounds right — or push it up to find your performance tempo. A giant knob, slider, +/− buttons, presets, and a type-in field change speed live. Save a speed-and-volume plan for every dancer, organize songs into folders, and control it all from your Apple Watch. No ads, no accounts, no tracking.
Money Flow: Budget & Expenses
Scan receipts to log expenses in a tap, track budgets and subscriptions, and see where your money goes with clean charts. Home and Lock Screen widgets, CSV/Excel import & export, full backup, and private iCloud sync. Manual entry only — no bank linking.
Ride Meter: Taxi Fare Meter
A worldwide taxi-fare meter for iPhone. Uses GPS to measure your trip and estimate the running fare from real, official metered tariffs — flag-fall, distance, waiting time and day/night rates — for 81+ cities and countries across every continent. Live meter, itemised receipts and trip history. An independent estimator, not a certified taximeter. Free for your home country with ads — Ride Meter Pro unlocks all 81+ regions, removes ads, and adds exportable history and iCloud backup.
PDF Scanner
Turn your camera into a fast, accurate document scanner — with a full PDF editor in the same app. Scans are automatically OCR'd so every word is searchable. Reorder pages, mark them up with Apple Pencil, drop in a signature, and fill PDF form fields. iCloud Drive ready. No ads, no accounts, no data collection.
SciCalc — Scientific Calculator
A clean scientific calculator with real expression parsing, a scrolling tape, and a dedicated landscape keypad. No ads, no accounts, no data collection.
Video Frame Export
Pull a pixel-perfect photo from any video. Scrub frame by frame and export at the source's full native resolution. Pro adds lossless PNG/HEIC and an iCloud-synced Library.
Chronograde — Watch Accuracy Tracker
Measure how fast or slow your watch runs against atomic time. Log measurements across your whole collection, watch the drift on a chart, and keep a wear and service history. Free for the first 10 measurements.
Roadbook GPS
A simple, private trip logger for iPhone. Auto-starts when you drive, records the route, distance and speed in the background, and keeps a bird's-eye view of every drive. Everything stays on your device or your own iCloud.
ClipVault — Media Saver
Save and back up the photos and videos you own. Paste a link to download media straight to Photos, or log in to back up your own posts and stories in one tap. No ads, no accounts, no data collection.
Sensor Data
A live readout of every sensor in your iPhone or iPad. Motion, GPS, battery, CPU, memory, storage and network — on five tabs with real-time graphs. No accounts, no ads, no data leaves your device.
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