Comparison

Eter Encrypted vs SilentX

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

Head to head
About

Eter Encrypted

Features
Read full description

Eter is a messenger built for people who take privacy seriously. Every detail is designed to minimize traces and protect your conversations against extraction — even in advanced forensic scenarios. END-TO-END ENCRYPTION All messages are protected by the Signal Protocol with Double Ratchet. Your conversations are encrypted before leaving the device and can only be read by the intended recipient. ZERO ON-DEVICE STORAGE Unlike other messengers, Eter never writes messages to disk. Content lives only in protected memory and is wiped when you leave the app. No local files, no database, no backups. THE VAULT After 24 hours, your messages are locked in a cryptographic vault. Reopening requires mutual consent — both parties must agree. Real control over what can exist. ANTI-FORENSIC PROTECTION Screenshot blocking, aggressive RAM cleanup with native SecureBuffer, content-free notifications, and automatic wipe in risk scenarios. Designed to minimize residual traces. ENCRYPTED CALLS Voice and video calls with end-to-end encryption. Group calls via SFU supporting up to 50 participants with adaptive quality. PRIVATE CIRCLES Groups with controlled access, social graph protection via HMAC tokens, and the same privacy guarantees as individual conversations. PRIVACY BY DESIGN No phone number or email required — just a username and password. No feeds, no data collection, no dark patterns. The app serves you, never the other way around. FAMILIAR INTERFACE Intuitive navigation you already know. Same ease of use, with the depth of security you deserve. Eter doesn't promise the impossible. It promises to drastically reduce risk — by design.

About

SilentX

Read full description

SilentX is a private communication and personal organization workspace. It is not merely another chat app: secure communication is combined with practical everyday tools in one coherent interface. PRIVATE COMMUNICATION • End-to-end encrypted messages. • One-to-one and group audio/video calls. • Send photos, videos, voice messages and documents. • Optional Smoke mode: selected content disappears after it is viewed. • Profile photos appear in contacts, conversations and calls. MANAGED GROUPS • Group logo and description. • Owner and administrator roles. • Add, remove, reinstate and manage members. BUILT-IN ORGANIZATION • Calendar appointments with reminders and secure sharing in conversations. • Tasks with due dates and local reminders. • Private notes organized by category and priority, shareable through SilentX or iOS. • Document scanner with automatic edge detection, local filing and controlled sharing. YOUR DATA, YOUR CONTROL Notes, tasks, appointments, scans and imported address-book details remain on the device. SilentX does not retain readable conversation history on its relay server. A password-encrypted backup can be exported to On My iPhone or to a cloud provider connected through the iOS Files app. SilentX never requests the provider password. FREE AND PREMIUM Free includes essential private communication plus monthly calendar and scanner allowances. Premium raises limits for groups, calls and files, makes calendar and scanning unlimited, and unlocks encrypted backup/restore and access to cloud locations through Files. The interface is available in English, French, Spanish, German and Brazilian Portuguese. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Eter Encrypted4 screens
SilentX4 screens

Verdict

The call

The clearest difference is update cadence: SilentX at every 2 days against Eter Encrypted's every 4 days. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Eter Encrypted sells 3 in-app purchases, starting at $14.99 per month and SilentX sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Eter Encrypted ships an update every 4 days, SilentX every 2 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard1 real difference · 5 level
Eter Encrypted versus SilentX: the parameters behind the verdict, then further details
ParameterEter EncryptedSilentX
PriceFreeFree
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size174 MB4 MB
Age rating4+4+
DeveloperDreyfus Queiroz de Vasconceloschristophe JACQUES

In-app purchases

3 purchases

Eter Encrypted

Subscriptions3
  • Monthly Subscription$14.991 Month
  • Annual Subscription$149.991 Year
  • Corporate Monthly Plan$229.991 Month
2 purchases

SilentX

Subscriptions2
  • SilentX Premium Monthly$4.991 Month
  • SilentX Premium Yearly$39.991 Year

Questions

Is Eter Encrypted free?
Eter Encrypted is free to download, with in-app purchases available.
Is SilentX free?
SilentX is free to download, with in-app purchases available.
Do Eter Encrypted or SilentX have ads?
Neither Eter Encrypted nor SilentX shows ads.
Which is updated more often, Eter Encrypted or SilentX?
Eter Encrypted ships an update every 4 days, and SilentX every 2 days. Most recently, Eter Encrypted was updated on October 31, 2026 and SilentX on October 29, 2026.

Other comparisons