ONSERVICE vs Dark Message Crypto Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ONSERVICE
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ONSERVICE will help its partners to provide services in a convenient and quick way. In ONSERVICE App one can: ⁃ take orders, by scanning the QR codes of the purchased goods and services; ⁃ check the details of the orders; ⁃ administrate the performance of staff members; ⁃ monitor the statistics of the completed orders and many other things. ONSERVICE App will help you to optimize the process of work and simplify the interaction with partners.
Dark Message Crypto Chat
Securely encrypt messages, photos, and documents offline using military-grade encryption. Share encrypted content through any app, and recipients can decrypt it with a shared passphrase. Protect your private conversations and confidential documents without needing an internet connection.
- Offline encryption for messages, photos, and documents
- AES-256-GCM military-grade encryption
- PBKDF2 brute-force protection
- No internet permissions
- Secure passphrase storage in iOS Keychain
- Supports various document types
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Dark Message — encrypt messages and files without the internet Write the way you always do: in any messenger, in mail, in social networks. Dark Message turns text, photos and documents into an encrypted message that only the holder of the same key can read. Anyone who intercepts it sees a string of characters. WHY DARK MESSAGE • Fully offline. The app has no internet access at all: no servers, no accounts, no sign-up, no analytics. Keys and messages never leave your phone. • Strong encryption: AES-256-GCM, with the key derived from your passphrase by PBKDF2-HMAC-SHA512 (600,000 iterations). • Works over any channel: copy the encrypted text and paste it anywhere. .darkm files travel as ordinary attachments. • Encrypts more than text: photos and documents (PDF, Word, Excel, any file), keeping the file name. A KEY IN SECONDS • Show a QR code and read out a six-digit PIN. The key inside the code is encrypted with that PIN, so a photo of the screen is useless to anyone else. • A key fingerprint next to every chat: the same on two phones means the same key. EASY TO USE • A separate key for every contact or group. • One-tap decryption: paste the text or open the file. • Dark and light themes, English and Russian. • Passphrases live in the system keychain. WHO IT IS FOR Private conversations, business documents, contracts, medical and financial records, family passwords — anything nobody but the recipient should read. Open source: you can check for yourself how it works. Updates keep all your chats and keys.
Screenshots
Verdict
The clearest difference is iOS requirement: ONSERVICE at 11.0 against Dark Message Crypto Chat's 17.0. On price, update cadence, ads and in-app purchases 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.
ONSERVICE ships an update every 3 months, Dark Message Crypto Chat every 6 months. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.
| Parameter | ONSERVICE | Dark Message Crypto Chat |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 47 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | MILEONAIR SOFTWARE DESIGN L.L.C | aleksandr bronnikov |
In-app purchases
ONSERVICE
No in-app purchases
Dark Message Crypto Chat
No in-app purchases
Questions
Is ONSERVICE free?
Is Dark Message Crypto Chat free?
Do ONSERVICE or Dark Message Crypto Chat have ads?
Which is updated more often, ONSERVICE or Dark Message Crypto Chat?
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