Amount vs OnHand_AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Amount
Effortlessly convert units with this intuitive and lightweight tool. Get real-time results for over 700 units across 30+ categories displayed simultaneously. Customize your conversion lists and access your history.
- Real-time conversions on one screen
- Over 700 units in 30+ categories
- Customizable unit lists
- Conversion history log
- Search and custom unit creation
- Lightweight and fast interface
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Amount is the most intuitive, lightweight and easy to use unit converter you've ever seen. Amount let you convert units in a way you've never seen before: with just two tap of your finger you have all the results you're looking for in a single display, side by side. When you use Amount you don't have to think what are number is and choose from a long list of values which unit assign to it, spending time. Just let it do all the stuff! FEATURES • Incredibly lightweight, fast and easy to use. • Simple graphic and intuitive interface. • Over 700 units across more than 30 categories. • Real time conversions in one screen. • Create your own customized lists. You can change the order as you like and select just the units you want to see. • View your conversion history log (the history keeps even old exchange rates for currencies). • Search feature to let find the unit you want and instantly convert it. • Custom units can be added easily for each category. Categories Amount can handle: Acceleration, Angles, Area, Clothing (men and women), Cooking, Currency, Data, Density, Electric current, Energy, Flow (mass and volume), Force, Frequency, Fuel Consumption, Illuminance, Length/Distance, Luminance, Metric System, Network speed, Power, Pressure, Radiation, Speed, Temperature, Time, Torque, Typography, Viscosity (dynamic and kinematic), Volume and Weight/Mass. TIPS • Move between screens using swipe gestures. • Long press any category or unit to see more options. • Shake the device to change the sorting of category or units (only on iPhone). • You can change the number directly in the conversion screen by simply tapping it. ADDITIONAL INFO To convert currencies is required an internet connection. Currency and clothing size information are provided only for informational purposes. If you're going to download Amount, please rate and leave a comment! And if you have a suggestion don't hesitate to contact me. With your help I can improve Amount even more!
OnHand_AI
This private AI assistant runs entirely on your device, offering offline functionality and complete data privacy. It requires no cloud connection, subscription, or account setup, making it simple to use for everyone. Pay once for full access without any hidden fees or tiers.
- Runs entirely on device
- Works offline
- Truly private conversations
- No cloud, subscription, or account needed
- Simple setup and use
- Web search on request
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OnHand AI is a private assistant that runs entirely on your phone. No cloud. No subscription. No account. Nothing you type ever leaves your device. SIMPLE FOR EVERYONE Open it and start talking. No setup, no jargon, no sign-up. If you can send a text message, you can use OnHand AI. WORKS OFFLINE The AI lives on your phone, not on a server. Use it on a plane, in the car, on a trail, or anywhere with no signal. TRULY PRIVATE Your conversations stay on your device. Nothing is uploaded, logged, or sold. Privacy by design — because there's no server to send anything to. ONE PRICE. NO TRICKS. Pay once and own it forever. No monthly fee, no "Pro" tier, nothing held back. LOOKS THINGS UP — ONLY WHEN YOU ASK Need current information? OnHand can search the web on request. You're always in control Requires a one time download of the model the first time you use the app. Approximately 2.6 GB. Requires iPhone 15 or newer.
Screenshots
Verdict
The clearest difference is rating: OnHand_AI at 5.0 against Amount's 3.3. OnHand_AI also leads on update cadence (daily vs monthly) and review sentiment (100% vs 87%). Amount's advantage is ratings volume (39 vs 2) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Amount costs $0.59 and OnHand_AI $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
OnHand_AI holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Amount has 39 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 87% of Amount's written reviews are positive against 100% of OnHand_AI's.
Amount ships an update monthly, OnHand_AI daily. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Amount | OnHand_AI |
|---|---|---|
| Price | $0.59 — better | $1.99 |
| Rating | 3.3 (39 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 86.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 39 — better | 2 |
| Update frequency | Monthly | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 6 MB | 42 MB |
| Age rating | 4+ | 12+ |
| Developer | Marco Torretta | Stillwater AI LLC |
Customer experience
Amount
OnHand_AI
Bugs and requests
Amount
Reported bugs
4 issues- Crashes when editing conversion lists
- Incompatible with older iOS versions
- Incorrect unit conversions (e.g. milli- vs centi-)
- Currency conversion rates not updating properly
Requested features
5 requests- Add more common units (e.g. stones, bushels)
- Improve currency conversion accuracy and update frequency
- Implement landscape mode and iPad optimization
- Add a widget and Apple Watch support
- Improve unit organization and search functionality
OnHand_AI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Amount
No in-app purchases
OnHand_AI
No in-app purchases









