TeachableMachine vs KeyFluent
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TeachableMachine
Create machine learning models easily on your mobile device. Capture data samples or upload custom ones, train your model, and instantly preview results. Export your trained models for use in other projects.
- Create machine learning models
- Image training support
- Capture data from webcam
- Upload custom data samples
- Instant model preview
- Export trained models
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TeachableMachine is such a great tool that everyone can create machine learning models with just a few steps. Unfortunately, the web version is not supported on mobile device and therefore we create this app to bring Teachable Machine to all mobile device users. Currently we support only image training. Simply gather data samples directly from webcam, or upload custom samples on your device, then train your model and instantly preview the result when done. You can also export the model and use it in your own projects!
KeyFluent
Learn a new language effortlessly by integrating language learning directly into your daily messaging. This keyboard translates your typed messages in real-time and incoming messages, offering an immersive, low-pressure way to acquire vocabulary and phrases.
- Translate messages as you type
- Automatic translation of incoming messages
- Translate copied text
- Hear word pronunciations
- Save words to a personal deck
- Vocabulary practice games
- Adaptive keyboard layout
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The average person sends close to 100 messages a day. KeyFluent turns every one of them into a chance to learn a new language. No lessons, no streaks, no extra time carved out of your day. Just type the way you always do, and watch a new language come to life right above your keyboard. TRANSLATE AS YOU TYPE Your message is translated above the keys as you write it, in over 130 languages, from Spanish and French to Japanese, Mandarin, and Hindi. Send it in the new language with one tap, and pick up the words just by seeing them every day. READ AND REPLY IN THEIR LANGUAGE Copy a message you can't read and switch to KeyFluent. The translation is waiting above the keys. Your reply goes out in their language automatically, then the keyboard switches back to your usual language when you're done. TALK FACE TO FACE The new Conversation screen turns your phone into a translator between two people. Each of you speaks, and the other hears and reads it in their own language. Scroll back through the chat anytime and save any line as a flashcard. HEAR EVERY WORD • Play the full translation in natural Google voices • Touch and hold any word to hear it, or slide across a phrase • Slow the pace down to catch every syllable FROM TYPING TO LEARNING Double-tap any translated word to save it, then open the Learning Center when you have a spare minute. • Flashcards for the words you've collected • A Mastery Game that makes practice feel like play • 15 vocabulary packs on themes like Travel, Food, Family, and everyday verbs AUTOCORRECT THAT KEEPS UP • Fixes typos using the words around it, even after you've moved on • Learns how you type, and gets more accurate the more you use it • Splits words that ran together and fixes fast-typing slips • Autocorrect in 17 languages, and it notices which one you're typing • One backspace after a correction brings back exactly what you typed MAKE IT YOURS • 24 themes, plus your own colors for the translation bubble • QWERTY, AZERTY, and QWERTZ layouts • Text shortcuts: type omw and get "on my way," or make your own • A Tap Map that learns where your fingers land and shifts the keys to match YOUR PRIVACY Your typing stays on your device. Autocorrect, predictions, your personal dictionary, and your Tap Map are built and stored on your phone. KeyFluent never logs or sells your keystrokes. Only the text you translate or play is sent to translation and voice services, and it's never used for advertising or tracking. Full Access lets the keyboard reach those services and use haptics. Details are in our Privacy Policy. SUBSCRIPTION Typing and autocorrect are free for everyone. Everything else is free for 7 days, then $3.99 a month, or $39.99 a year with the annual plan. • Payment is charged to your Apple ID when you confirm the purchase. • Your subscription renews automatically unless auto renew is turned off at least 24 hours before the period ends. • Your account is charged within 24 hours before the period ends. • If you start a paid subscription, any unused part of the trial is forfeited. • Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/keyfluent/home
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Verdict
The clearest difference is review sentiment: KeyFluent at 100% against TeachableMachine's 11%. KeyFluent also leads on rating (5.0 vs 1.8) and update cadence (every 5 days vs every 6 weeks). TeachableMachine's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support 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
Both are free to download. KeyFluent sells 2 in-app purchases, starting at $3.99 per month. TeachableMachine asks for nothing beyond the download.
KeyFluent holds the better App Store score, 5.0 against 1.8. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 11% of TeachableMachine's written reviews are positive against 100% of KeyFluent's.
TeachableMachine ships an update every 6 weeks, KeyFluent every 5 days. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.
| Parameter | TeachableMachine | KeyFluent |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (4 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 11.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 5 — better |
| Update frequency | Every 6 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 96 MB |
| Age rating | 4+ | 4+ |
| Developer | Robocar Ltd | Stephen Alexander |
Customer experience
TeachableMachine
KeyFluent
In-app purchases
TeachableMachine
No in-app purchases
KeyFluent
- KeyFluent7 Days trial$3.991 Month
- Annual7 Days trial$39.991 Year









