ChatAI vs Echo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChatAI
Engage in thoughtful conversations, brainstorm creative ideas, or generate various forms of written content. This AI-powered chatbot offers personalized responses across a wide range of topics.
- AI-powered chatbot
- Personalized responses
- Brainstorm creative ideas
- Write long-form content
- Casual conversation
- Understand wide range of topics
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ChatAl is a revolutionary AI chat robot powered by AI. Simply type in your message or commands, and ChatAI will respond with a thoughtful and personalized response. Whether you want to brainstorm your creative ideas, write long-form content (reports, essays, emails, articles, etc.) , chat about current events, share your thoughts and feelings, or just have a casual conversation,ChatAI is here to listen and engage with you. With its constantly evolving Al technology, ChatAI is able to understand and respond to a wide range of topics and topics of conversation. Try it today and experience the wonderful future! Friendly reminder: All data from ChatAIis generated by computational science and big data. Please do not use it in scientific treatments that require personalization such as medical treatment. This app is not responsible for the consequences. Privacy: https://github.com/InoHawk/app-ChatAI/blob/main/Privacy Terms: https://github.com/InoHawk/app-ChatAI/blob/main/UsageTerms
Echo
This app helps you track important dates like anniversaries and manage daily notes. It offers local reminders, diary entries with moods, and a "On This Day" feature to revisit past memories. The minimalist design keeps everything private and on your device.
- Anniversary and countdown tracking
- Local reminders
- Diary entries with moods
- On This Day flashbacks
- Privacy-first local storage
- PDF export of diary
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Echo Days is the quiet home for your time: anniversaries, a diary, private memos, and Insights in one app you buy once and keep forever. No ads, no subscriptions, no accounts, and no cloud — everything you write stays on your device. WHY PAY ONCE Free apps make you pay with attention and data. Echo keeps it simple: one purchase unlocks every feature, forever. No monthly fees, no tracking — the app works for you, not for advertisers. ANNIVERSARIES Count-up days, countdowns, and yearly anniversaries, calculated automatically. Custom icons and local reminders mean the moments that matter never slip by. DIARY Write short entries with mood tags, link them to events, find anything with search and filters, and export the whole notebook to PDF. MEMOS Accounts, cards, documents, and plain notes in one place. Custom rows, pinning, search, and one-tap copy put what you need at your fingertips. INSIGHTS & ON THIS DAY See how your records are distributed, how often you write, and how your mood shifts — then revisit past years, one day at a time. PRIVATE BY DESIGN No account, no sync, nothing uploaded. A gesture lock keeps the whole app to yourself. 7 languages, ready for iPhone Duo and iPad. One purchase, a companion for years. Give your memories one calm, complete home.
Screenshots
Verdict
The clearest difference is price: ChatAI at Free against Echo's $3.99. ChatAI also leads on update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (15.6 vs 18.6). Echo's advantage is in-app purchases (none vs 3) and review sentiment (100% vs 80%). 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
ChatAI is free to download; Echo costs $3.99 up front. ChatAI sells 3 in-app purchases, starting at $3.99 per 7 days. Echo asks for nothing beyond the download.
ChatAI ships an update every 3 weeks, Echo every 6 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | ChatAI | Echo |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | 浩 刘 | 鹏 杨 |
Customer experience
ChatAI
Echo
In-app purchases
ChatAI
- ChatAI Vip Subscrition Weekly$3.997 Days
- Vip Subscription Monthly$12.991 Month
- ChatAI Vip Sbuscription Yearly$29.991 Year
Echo
No in-app purchases









