Sdk phone vs DexterityMessage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sdk phone
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Heyday Phone allows you to make calls between extensions of the same company as well as adapting specific functionalities of a company such as transferring calls and placing a call on hold when necessary.
DexterityMessage
Securely communicate sensitive text with end-to-end encryption using AES256-GCM and PBKDF2. Keys are stored on the Secure Enclave for easy device syncing and retrieval.
- AES256-GCM encryption
- PBKDF2 key derivation
- WebRTC communication
- Secure Enclave key storage
- Cross-device key sharing
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Dexterity Message features the AES-256-GCM encryption standard along with a password based key derivation function (PBKDF2) for secure encrypted sensitive communication. Keys are stored on the Secure Enclave for easy sharing between devices and retrieval when encrypting or decrypting keeping you end-to-end protected.
Screenshots
Verdict
The clearest difference is price: Sdk phone at Free against DexterityMessage's $0.99. Sdk phone also leads on iOS requirement (12.3 vs 16.2). DexterityMessage's advantage is update cadence (every 2 weeks vs every 17 months). On 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
Sdk phone is free to download; DexterityMessage costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sdk phone ships an update every 17 months, DexterityMessage every 2 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | Sdk phone | DexterityMessage |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 17 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.3 — better | 16.2 |
| Further details — not scored | ||
| Size | 18 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | heyday dev | Advanced Digital Extensions LLC |
In-app purchases
Sdk phone
No in-app purchases
DexterityMessage
No in-app purchases
