Jatter vs Comm Messenger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Jatter
This AI chat application prioritizes user privacy with client-side encryption for all conversations. It helps users draft content, learn new topics, and explore locations securely. A free tier offers basic AI models and features, with an optional subscription for advanced capabilities.
- Client-side encryption for privacy
- Content drafting and generation
- In-depth learning and exploration
- Integrated map and location sharing
- Anonymized chat processing
- GPT-4o and GPT-4o mini access
Read full descriptionHide full description
What if your AI actually understood your life — without giving your life away? Jatter is a private, encrypted AI browser that connects what you browse, save, write, and ask so your AI can give you answers that are personal to you. Instead of starting every conversation from zero, Jatter can build useful context from the information you choose to share with it. That means better answers, less repetition, and an AI that becomes more useful over time. AI THAT KNOWS MORE ABOUT YOU — PRIVATELY • Get answers about your life using your own private information. • Understand your finances by asking questions about supported authenticated financial pages. • Turn notes into answers instead of digging through them yourself. • Find things you’ve seen before without remembering exactly where you found them. • Explore places with AI and get help discovering what matters to you. • Connect the dots across your browsing, notes, and AI conversations. IMAGINE ASKING: • “Where am I spending the most money?” • “What was that product I looked at last week?” • “What were the key ideas in the notes I saved?” • “What do I already know about this topic?” Jatter is designed to make questions like these possible without forcing you to hand over your personal data to build an advertising profile. PRIVATE BY DESIGN Personal AI should be personal — not surveillance. Jatter uses client-side encryption for supported personal data and AI conversations, helping keep your information private and under your control. START FOR FREE • Learning from 1 website • Up to 3 notes per month • Access to basic AI models • Private, encrypted personal data JATTER PLUS — $10/month or $100/year • Unlimited websites for permission-based learning • Unlimited notes • Premium AI models • Personalized answers across the websites you visit • Place photos and reviews in AI Maps • The same private, encrypted experience You decide which websites Jatter can learn from, and you can start using it without paying anything. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://www.jatter.ai/privacy-policy/
Comm Messenger
This app allows users to create and join private chat communities hosted on personal keyservers. It offers a hierarchical thread structure similar to Discord channels and nested sidebars like Slack. The platform supports customizable community features through an app library, starting with a calendar app.
- Decentralized keyserver hosting
- Nested chat threads
- Slack-style sidebars
- Community app library
- Calendar app integration
Read full descriptionHide full description
- In Comm, each community is hosted on somebody's keyserver. - You can set up a keyserver on your laptop or in the cloud. - Comm won't host your keyserver for you. (We don't want to have access to your data!) - You don't need a keyserver to join a community, but you do need one to create a community. Keyservers enable us to offer the sort of sophisticated feature set that typically relies on corporate servers on the cloud, without sacrificing the privacy of our users. - Each community on Comm contains a tree structure of chat threads. Our threads are sort of like channels in Discord, but they can be nested inside each other. - Comm supports "sidebars", which are sort of like threads in Slack. Sidebars are created in response to a message in a parent thread. - Along with the default chat functionality, Comm also supports a library of apps to customize your community. We're launching with a Calendar app, and have more apps in the pipeline!
Screenshots
Verdict
The clearest difference is in-app purchases: Comm Messenger at none against Jatter's 2. Comm Messenger also leads on update cadence (every 5 days vs monthly) and rating (5.0 vs 4.7). On price, review sentiment, ratings volume 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. Jatter sells 2 in-app purchases, starting at $4.99 per month. Comm Messenger asks for nothing beyond the download.
Comm Messenger holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 24 and 12 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Jatter ships an update monthly, Comm Messenger every 5 days. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.
| Parameter | Jatter | Comm Messenger |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (24 ratings) | 5.0 (12 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 24 — better | 12 |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 130 MB | 69 MB |
| Age rating | 17+ | 4+ |
| Developer | Castle Information Systems, Inc. | Helio Networks |
Customer experience
Jatter
Comm Messenger
In-app purchases
Jatter
- Monthly$4.991 Month
- Yearly$39.991 Year
Comm Messenger
No in-app purchases





