Callimo vs Chithi.me
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Callimo
Connect with friends globally through fast, secure, and easy-to-use video calls and instant messaging. Create group chats to stay in touch with multiple people simultaneously.
- Instant messaging
- Group chats
- Secure communication
- Easy-to-use interface
- Video calls
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Description: Callimo is a brand-new communication app designed to help you build closer connections with friends around the world. Whether you're looking to chat with like-minded people or stay in touch with friends, Callimo provides a relaxed, fast, and secure platform for communication. Key Features: 1. Instant Messaging – Send and receive messages instantly with a smooth, real-time chat experience. 2. Group Chats – Create group chats easily to connect with multiple friends at once. 3. Simple & Easy-to-Use Interface – Clean and intuitive design that makes messaging effortless.
Chithi.me
This app provides a digital mailbox for receiving personal letters from friends. Letters appear in a handwritten font on customizable paper designs and can be replayed keystroke by keystroke. Users can share letters to their stories or create scannable QR cards for their link.
- Digital mailbox for letters
- Handwritten font and paper designs
- Letter replay feature
- Share letters to stories
- QR card for link
- Searchable mailbox
- Content filtering and reporting
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Chithi.me is a mailbox for letters worth keeping. Share your link on social media, and the people who follow you can write you a letter. It arrives in its own handwritten font, on their choice of paper-like design, and it stays in your mailbox for as long as you want it there. HOW IT WORKS 1. Share your Chithi.me link 2. The people you share it with write you a letter 3. It lands in your mailbox seconds later WATCH THE WRITING TAKE SHAPE Replay any letter keystroke by keystroke and watch it being written. It is the closest you will get to sitting beside someone while they write to you. POST ONE TO YOUR STORY Put a letter on one of your own photos and share it in a tap. YOUR OWN QR CARD Turn your link into a card people can scan. Pick a style, write a caption in Bangla or English, and share it as a picture. Point a phone camera at it and your letter page opens. A MAILBOX THAT IS ONLY YOURS Letters arrive grouped by day, so today's are on top. Search everything you have ever been sent. A notification tells you the moment one lands. Nobody but you can see your mailbox. YOU DECIDE WHAT REACHES YOU Letters arrive unsigned, so a friend can say the kind thing they would not say out loud. That only works if the mailbox is a safe place to open, so Chithi.me is built with the controls to keep it one: - Every letter is screened by an automatic filter, in English and in Bangla, before it reaches you. The filter is on by default and you can turn it off. - Report any letter in two taps. We review every report within 24 hours and remove anything that breaks our rules. - Block whoever wrote a letter and nothing of theirs reaches you again. Blocked writers are listed in Settings, and you can undo it there. - Delete any letter the moment you see it. - Pause your link so it stops accepting letters, or delete your account and everything in it, from inside the app. - We have no tolerance for abuse. Writers who break our rules lose access, and we act on reports within 24 hours. - Reach us any time at support@chithi.me. Chithi.me is for people who miss getting letters. Share your link and see what arrives. Terms of Service: https://chithi.me/terms-of-service Privacy Policy: https://chithi.me/privacy-policy
Screenshots
Verdict
The clearest difference is rating: Chithi.me at 4.6 against Callimo's 4.3. Chithi.me also leads on review sentiment (100% vs 80%). Callimo's advantage is chart position (#108 vs unranked). On price, ratings volume, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.
Chithi.me holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 20 and 10 respectively. Written reviews point the same way: 80% of Callimo's written reviews are positive against 100% of Chithi.me's.
Callimo ships an update every 8 days, Chithi.me every 10 days. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.
| Parameter | Callimo | Chithi.me |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (20 ratings) | 4.6 (10 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 20 — better | 10 |
| Update frequency | Every 8 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #108 — better | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 9 MB |
| Age rating | 4+ | 17+ |
| Developer | Aydonat Celebi | S. M. Sakeef Sani |
Customer experience
Callimo
Chithi.me
In-app purchases
Callimo
No in-app purchases
Chithi.me
No in-app purchases
