Wispr vs Sifter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wispr
This app offers fully private and secured communication, including messages, audio/video calls, and file transfers. It utilizes advanced encryption technology to ensure no one, not even the app developers, can access your conversations. Enjoy high-fidelity communication with a user-friendly design, optimized for all network conditions.
- End-to-end encrypted messages
- Private audio/video calls
- Secure file transfers
- Voice Over Blockchain Protocol (VOBP) encryption
- User-friendly interface
- Optimized for all network conditions
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Given today’s challenge of keeping one’s privacy private, Wispr is the present and future of secured communication. Each high-fidelity message, audio/video call or file transfer is fully private with no one, not even us, being able to interfere. FULLY PROTECTED : State-of-the-art technology ensures secured messages and file transfers to and from anyone at any time. You don’t have to worry about needing special features as having all things private and secured is normality for Wispr. BY NEW ENCRYPTION TECHNOLOGY: Having each and every element on the app (messages, audio and video calls, file transfers) encrypted is brought to you by VOBP (Voice Over Blockchain Protocol), which makes your communication bullet proof. FOR FREE : Privacy should not be perceived as a preference, but as a given and so Wispr should not be a choice, but a normality. WITH NO FURTHER EFFORT : Wispr is available for everyone through the simple use of their phone number and address book or through using Matrix ID that is one can directly access owners of Impulse K1, a phone taking encryption to a whole new level. However, Wispr’s future has much to hold in terms of taking privacy to a whole new level. YET BEST QUALITY : Slow networks are not a show stopper for Wispr, which is optimized to perform equally successful in all kinds of environments all over the world. Top that with a user friendly, very intuitive design and low latency and you get your choice of privacy providing app.
Sifter
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Sifter is a location-based group chat app where users create and join conversation rooms tied to real-world locations. Every chat room is created by a registered user with a name, description, and geographic boundary. Only people physically within that boundary can see and join the room. There is no random matching, no one-to-one pairing, and no anonymous strangers — every user has a verified account and visible username. HOW IT WORKS • Registered users create named chat rooms at specific locations with a set range • Other verified users within that geographic area can browse rooms and choose to join • Room creators control their space — set passwords, allow or restrict guest access, moderate conversations • Rooms automatically close when the creator leaves, after inactivity, or by manual closing BUILT FOR REAL LIFE • Concerts & Events — Create a room for the crowd around you • Neighborhoods — Discuss local news, lost pets, or organize meetups • Travel — Start conversations at hotels, airports, or landmarks • Business — Engage nearby customers with location-based promotions • Campus — Study groups, dorm chats, campus alerts EARN & COMPETE • Earn points for creating rooms, sending messages, and exploring • Unlock 30+ achievements with custom badges • Climb the leaderboard and earn titles like World Champion SAFE & PRIVATE • Phone verification required to create an account • Content moderation, reporting, and blocking built in • Room creators can mute, ban, and remove users • Profanity filtering and age-appropriate content controls • Location used only for geofencing — never shared with other users Download Sifter and start real conversations in real places.
Screenshots
Verdict
The clearest difference is ads: Wispr at none against Sifter's shown. Wispr also leads on iOS requirement (12.2 vs 15.6). Sifter's advantage is update cadence (every 10 days vs every 6 weeks). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Wispr ships an update every 6 weeks, Sifter every 10 days. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.
| Parameter | Wispr | Sifter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (53 ratings) — better | — |
| Positive reviews | 67.3% of reviews | — |
| Number of ratings | 53 — better | — |
| Update frequency | Every 6 weeks | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 322 MB | 82 MB |
| Age rating | 4+ | 9+ |
| Developer | CRYPTODATA TECH S.R.L. | Sifter |
In-app purchases
Wispr
No in-app purchases
Sifter
No in-app purchases









