Comparison

Seifr vs nost

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

Head to head
About

Seifr

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** You must have account data for your private setup to run this app. This data can be provided by administrator of your Seifr private server. ** Seifr - Secure communication solution for your iPhone and iPad Seifr provides full end-to-end encryption. With Seifr you can: - Make and receive encrypted voice or video calls - Make and receive encrypted conference calls - Create group chats - Create and manage chatrooms - Participate in conference rooms - Send encrypted text messages - Take and send encrypted photos - Create a confidential live stream, with recording for later viewing (SEIFR EVIDENCE) - Share your location in real time with your group (private setups only) - Location pinning - Record and send encrypted voice messages - Send encrypted images and videos from your Camera Roll - Use timed self-destruction of messages - Get in touch with your contacts on their known addresses (phone numbers, e-mails) or dedicated Seifr IDs

About

nost

Features
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nost is a privacy-first communication app built for secure, simple, and reliable conversations. Private messages and one-to-one voice calls are protected with end-to-end encryption (E2EE). Your conversations stay on your devicesβ€”not on our servers. Encrypted messages are temporarily stored only while awaiting delivery and are removed from the server after they have been delivered or read. Key Features β€’ End-to-end encrypted one-to-one and group messaging β€’ Hybrid post-quantum encryption (PQC) for enhanced long-term security β€’ Secure end-to-end encrypted one-to-one voice calls β€’ Murmur, a public community for sharing short posts and connecting with people around the world β€’ On-device translation for Murmur posts and comments in supported languages β€’ Photos, videos, voice messages, files, stickers, reactions, replies, and message forwarding β€’ Sign in with Google, Sign in with Apple, or email β€’ nost Mode – automatically deletes messages within 5 minutes after they have been viewed Privacy First nost is designed to minimize the amount of personal data stored on servers. Your private conversations remain on your devices, while encrypted messages exist on our servers only temporarily for delivery before being removed. Privacy is not just a featureβ€”it’s the foundation of nost. Your conversations belong only to you.

Screenshots

Seifr4 screens
nost3 screens

Verdict

The call

The clearest difference is update cadence: nost at every 5 days against Seifr's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Seifr ships an update every 4 months, nost every 5 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard1 real difference Β· 5 level
Seifr versus nost: the parameters behind the verdict, then further details
ParameterSeifrnost
PriceFreeFree
Update frequencyEvery 4 monthsEvery 5 days β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad β€” betteriPhone
Requires iOS16.016.0
Further details β€” not scored
Size74 MB131 MB
Age rating4+12+
DeveloperBIOKODA dooSUNGDO PARK

In-app purchases

None

Seifr

No in-app purchases

None

nost

No in-app purchases

Questions

Is Seifr free?
Seifr is free to download, with no in-app purchases.
Is nost free?
nost is free to download, with no in-app purchases.
Do Seifr or nost have ads?
Neither Seifr nor nost shows ads.
Which is updated more often, Seifr or nost?
Seifr ships an update every 4 months, and nost every 5 days. Most recently, Seifr was updated on October 25, 2026 and nost on October 28, 2026.

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