Comparison

ByteCake vs Echo

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

Head to head
About

ByteCake

Features
Read full description

ByteCake - Erase Smart Smart AI. Sweet Simplicity. ByteCake is an intelligent mobile tool that blends cloud-based AI chat services with offline image editing, offering both creativity and convenience in one app. Key Features • Link Dify API for cloud AI chat Connect your own Dify API Key to unlock advanced AI chat, writing, and Q&A powered by custom agents. • Erase objects or watermarks instantly (offline) Use the built-in offline eraser to remove unwanted content from your photos—no internet needed. • Photo to sketch converter Turn your pictures into sketch-style artwork with a single tap—great for creativity or stylized sharing. • Private, local processing All image editing is performed on-device, ensuring your data stays secure and private. Online + Offline AI Fusion ByteCake gives you the best of both worlds: •Cloud-based AI for smart conversations •Offline tools for image privacy and instant results Whether you’re online or off, ByteCake keeps your creativity flowing.

About

Echo

Features
Read full description

Experience the power of artificial intelligence on your own terms. Our app lets you download and run open-source AI models directly on your phone—no internet connection required. You stay in full control of your data and privacy at all times. With support for offline AI, private LLM, and local LLM functionality, you can explore advanced AI features anywhere, anytime—completely private AI with no cloud involvement. Key Features Fully Offline: No internet needed. Run AI models right on your device for ultimate privacy and convenience. Open-Source Models: Choose from a variety of open-source models to tailor your AI experience to your specific needs. Data Stays Yours: All processing happens locally, keeping your personal information safe and secure on your phone. Easy to Use: Download, install, and run models with just a few taps—no technical expertise required. Expandable & Customizable: Add or swap models to keep up with the latest AI innovations and never miss out on new features. Unlock the future of AI—on your phone, on your terms. Download now to enjoy a private LLM experience wherever you go!

Screenshots

ByteCake4 screens
Echo4 screens

Verdict

The call

The clearest difference is price: ByteCake at Free against Echo's $6.99. ByteCake also leads on iOS requirement (15.0 vs 17.6). Echo's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs every 5 months). On 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

ByteCake is free to download; Echo costs $6.99 up front. ByteCake sells 1 one-off in-app purchase. Echo asks for nothing beyond the download.

UpkeepUpdate frequency

ByteCake ships an update every 5 months, Echo every 5 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 2 level
ByteCake versus Echo: the parameters behind the verdict, then further details
ParameterByteCakeEcho
PriceFree — better$6.99
Update frequencyEvery 5 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size282 MB16 MB
Age rating17+4+
Developer帅 杨Umi Indigo LLC

In-app purchases

1 purchases

ByteCake

One-time1
  • ChatFiles$0.99
None

Echo

No in-app purchases

Questions

Is ByteCake free?
ByteCake is free to download, with in-app purchases available.
Is Echo free?
Echo costs $6.99, with no in-app purchases.
Do ByteCake or Echo have ads?
Neither ByteCake nor Echo shows ads.
Which is updated more often, ByteCake or Echo?
ByteCake ships an update every 5 months, and Echo every 5 days. Most recently, ByteCake was updated on November 3, 2026 and Echo on October 30, 2026.

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