Comparison

TeachableMachine vs KeyFluent

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Create machine learning models
  • Image training support
  • Capture data from webcam
  • Upload custom data samples
  • Instant model preview
  • Export trained models
Features
Read full description

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!

About

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

TeachableMachine2 screens
KeyFluent4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. KeyFluent sells 2 in-app purchases, starting at $3.99 per month. TeachableMachine asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
TeachableMachine versus KeyFluent: the parameters behind the verdict, then further details
ParameterTeachableMachineKeyFluent
PriceFreeFree
Rating1.8 (4 ratings)5.0 (5 ratings) — better
Positive reviews11.1% of reviews100.0% of reviews — better
Number of ratings45 — better
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size4 MB96 MB
Age rating4+4+
DeveloperRobocar LtdStephen Alexander

Customer experience

TeachableMachine

Written reviews9 reviews
Positive11.1%
Neutral0.0%
Negative88.9%

KeyFluent

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TeachableMachine

No in-app purchases

2 purchases

KeyFluent

Subscriptions2
  • KeyFluent7 Days trial$3.991 Month
  • Annual7 Days trial$39.991 Year

Questions

Is TeachableMachine free?
TeachableMachine is free to download, with no in-app purchases.
Is KeyFluent free?
KeyFluent is free to download, with in-app purchases available.
Which has better reviews, TeachableMachine or KeyFluent?
KeyFluent is rated higher. TeachableMachine averages 1.8 out of 5 from 4 ratings, while KeyFluent averages 5.0 from 5 ratings.
Do TeachableMachine or KeyFluent have ads?
Neither TeachableMachine nor KeyFluent shows ads.
Which is updated more often, TeachableMachine or KeyFluent?
TeachableMachine ships an update every 6 weeks, and KeyFluent every 5 days. Most recently, TeachableMachine was updated on October 24, 2026 and KeyFluent on October 15, 2026.

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