Amount Plus vs Memex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Amount Plus
This app offers an enhanced unit conversion experience with a beautiful interface and extensive customization. It provides over 700 units across 30 categories, advanced search and filtering, and shortcuts for quick conversions. It also supports widgets and Apple Watch for convenient access.
- Over 700 units in 30+ categories
- Advanced search, filter, and compare
- Customizable shortcuts for fast conversions
- User-definable custom units
- Today widget and Apple Watch support
- Gorgeous, user-friendly interface
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Amount Plus is an enhanced version of the multi award winning unit conversion app Amount. Amount Plus improves every aspect of the predecessor by adding more advanced features to increase your productivity without sacrificing its famous simplicity. With a new gorgeous user interface and unrivaled customization features Amount Plus gives you the ability to convert everything you need just the way you like! FEATURES • Converts units faster than before; • Has over 700 units across more than 30 categories; • Offers new ways to search, filter, convert and compare units; • Allows the creation of shortcuts for incredibly fast conversions; • Completely customizable at user needs; • Custom units can be easily added for each category; • Supports Today widget extension to quickly access your favorite conversions; • Supports Apple Watch to convert units directly on your wrist; Categories Amount Plus can handle: Acceleration, Angles, Area, Astronomical, Clothing (men and women), Cooking, Currency, Data, Density, Electric current, Energy, Flow (mass and volume), Force, Frequency, Fuel Consumption, Illuminance, Length and Distance, Luminance, Metric System, Network speed, Power, Pressure, Radiation, Sound, Speed, Temperature, Textile Yarn, Time, Torque, Transportation Cost, Typography, Viscosity (dynamic and kinematic), Volume, Weight and Mass. 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 Plus 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 Plus even more!
Memex
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Memex is a memo app where the thoughts you capture reveal who you are. Jot down a passing thought, save a screenshot — Memex reads the text, summarizes what matters, and sorts each memory into rooms on your shelf. Over time, your notes resurface on their own, and a picture of who you are quietly takes shape. - Capture thoughts and screenshots in one tap - Automatic text recognition and summaries - Memories organized into rooms, like books on a shelf - Rediscover past notes when they matter most - Search across titles, summaries, and keywords
Screenshots
Verdict
The clearest difference is price: Memex at Free against Amount Plus's $0.90. Memex also leads on update cadence (every 6 days vs monthly). Amount Plus's advantage is device support (4 vs 1) and iOS requirement (9.0 vs 16.4). 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
Memex is free to download; Amount Plus costs $0.90 up front. Neither carries in-app purchases, so what you see is what you pay.
Amount Plus ships an update monthly, Memex every 6 days. Both last shipped on November 13, 2026.
| Parameter | Amount Plus | Memex |
|---|---|---|
| Price | $0.90 | Free — better |
| Rating | 4.3 (96 ratings) — better | — |
| Positive reviews | 61.2% of reviews | — |
| Number of ratings | 96 — better | — |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 7 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Marco Torretta | DASEUL KIM |
In-app purchases
Amount Plus
No in-app purchases
Memex
No in-app purchases





