4 buttons camera vs Smart Keys
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
4 buttons camera
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Photo will be taken when you release one of your fingers while holding down the four buttons. Prevents the mistake of getting your finger on the lens.
Smart Keys
This AI-powered keyboard enhances your writing by offering instant translation, grammar correction, and smart reply suggestions. It also features text generation from images, custom AI key creation, and text-to-speech capabilities, making communication effortless across languages and platforms.
- On-the-fly translation
- Smart reply suggestions
- Image-based text generation
- Custom generative AI keys
- Real-time proofreading
- Tone customization
- Text-to-speech
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Smart Keys makes writing easier and more enjoyable. As bilinguals passionate about languages, we created this AI keyboard to help anyone communicate fluently and effortlessly. Whether it’s polishing grammar, adding style, or translating instantly, Smart Keys simplifies your writing experience. It’s a game-changer for ESL users and those balancing multilingual conversations, bringing natural flow to every message. Smart Keys is designed to help you communicate naturally, without losing your unique style. From keeping in touch with loved ones to managing multilingual conversations at work, Smart Keys, as your go-to writing tools, make switching between languages a breeze. NOW A SCREEN TRANSLATOR AND SMART REPLY - On-the-Fly Translation: Instantly translate incoming messages, screenshots, or entire conversation threads, perfect for TikTok refugees on RedNote 小红书 (Xiaohongshu). - Smart Reply Suggestions: Get quick, context-aware responses in any language. - Image-Based Messaging: Upload an image and let Smart Keys generate text for you. SMART KEYS + IPAD BLUETOOTH KEYBOARD = MAGIC! You can now use Smart Keys seamlessly with your Bluetooth keyboard like a pro. It’s almost like having a smart Touch Bar for your external iPad keyboard, enhancing your typing experience with effortless fluency and creativity! CREATE YOUR OWN GENERATIVE AI KEY Now, we’re taking it even further with a new feature: the ability to create your own custom keys. Smart Keys gives you full creative control, letting you design keys that suit your unique writing style and needs. Make your keys private or share them publicly, Smart Keys is all about making writing exactly what you want it to be. WORK FASTER - Proofread: Skip the copy-paste routine and proofread directly as you type. It’s fast, easy, and seamless, thanks to our efficient writing tools. - Tone Customization: Effortlessly shift between casual and formal tones, ensuring your message is just right, every time. - Translate: Break down language barriers with instant, accurate translations that make global communication simple. - Text-to-Speech: Bring your words to life by instantly transforming your text into clear, natural speech. Communicate with impact using our new voice keys, designed to add another dimension to your writing. PLAY SMARTER - Pickup Lines: Add a touch of charm to your conversations with creative, fun pickup lines, all at your fingertips. - Jokes: Brighten your day with a quick joke—because who doesn’t need a little laugh? - Horoscopes: Get a daily dose of cosmic insight with quick horoscope readings, perfect for sharing. - Make it Rhyme: Turn your text into poetry with a single tap, because creativity should be easy with the right writing tools. - Kaomoji: Express yourself effortlessly with kaomojis, adding personality to your messages. WORKS WHERE YOU DO No matter where you’re typing, Smart Keys works across multiple platforms, so you can enjoy all these writing tools wherever you are. WHY CHOOSE SMART KEYS - Enhance Your Writing: Create clear, confident messages with ease, using our writing tools. - Expand Your Vocabulary: Discover smarter word choices effortlessly with our writing tools. - Save Time: Focus on what you love by spending less time editing, thanks to our writing tools. - Sound Fluent: Effortlessly polish your writing to sound natural and fluent with our writing tools. - Enjoy Writing: Transform writing from a chore into a simple, joyful experience with Smart Keys' advanced writing tools. FREE & PRO PLANS Start with our Free Plan and see how Smart Keys can simplify your writing. When you’re ready for even more effortless creativity, unlock additional features with our Pro Plan. Whether you choose Free or Pro, Smart Keys and its writing tools are here to make writing easier for you. Terms of Service: https://www.smartkeys.so/terms Privacy Policy: https://www.smartkeys.so/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: 4 buttons camera at none against Smart Keys's 10. 4 buttons camera also leads on iOS requirement (15.8.3 vs 17.0). On price, update cadence, 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. Smart Keys sells 10 in-app purchases, starting at $4.99 per 7 days. 4 buttons camera asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 17, 2026 and September 26, 2026 respectively.
| Parameter | 4 buttons camera | Smart Keys |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (535 ratings) — better |
| Positive reviews | — | 43.2% of reviews |
| Number of ratings | — | 535 — better |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.8.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 37 MB | 33 MB |
| Age rating | 4+ | 9+ |
| Developer | Hideaki Uchikoshi | Fireflow Creative Collective LLC |
Bugs and requests
4 buttons camera
Not enough reviews yet to summarise bugs or requests.
Smart Keys
Reported bugs
5 issues- Connection issues despite active internet connection
- Keyboard lags during use
- Autocorrect performs poorly compared to Apple's native option
- App requests excessive permissions unrelated to keyboard functionality
- Translation accuracy issues reported
Requested features
6 requests- Add Arabic language support
- Translate incoming messages from other users
- Reduce daily usage limits or offer ad-supported free version
- Lower lifetime pricing (previously $35, now $124)
- Improve keyboard responsiveness
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- Better autocorrect functionality
In-app purchases
4 buttons camera
No in-app purchases
Smart Keys
- Smart Keys Pro3 Days trial$4.997 Days
- Smart Keys Pro Desktop3 Days trial$4.997 Days
- Smart Keys Voice3 Days trial$4.997 Days
Show 5 moreShow fewer
- Smart Keys Pro3 Days trial$12.491 Month
- Smart Keys Pro Desktop3 Days trial$12.991 Month
- Smart Keys Pro$49.901 Year
- Smart Keys Pro3 Days trial$69.991 Year
- Smart Keys Pro Desktop3 Days trial$99.991 Year
- Lifetime$39.99
- Smart Keys Pro$123.99
Questions
Is 4 buttons camera free?
Is Smart Keys free?
Do 4 buttons camera or Smart Keys have ads?
Which is updated more often, 4 buttons camera or Smart Keys?
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