Cert Checker vs Heidi Wallet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cert Checker
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Die neue ÖSD Cert Checker App ist da! Mit unserer App können Sie ganz einfach die Echtheit von ÖSD-Zertifikaten anhand des aufgedruckten QR-Codes überprüfen. Ideal für Behörden, Unternehmen, Bildungseinrichtungen und Privatpersonen, die Gewissheit haben wollen.
Heidi Wallet
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The straightforward wallet app. With Heidi Wallet, you can store your digital IDs and credentials securely and present them easily. Privacy by Design - The data of the digital credentials are encrypted and stored locally on the smartphone. You have full control over your data and decide yourself with whom you want to share which data. The current version supports the Public Sandbox Trust Infrastructure of the Federal Office of Information Technology, Systems and Telecommunication (FOITT).
Screenshots
Verdict
The clearest difference is update cadence: Heidi Wallet at every 2 months against Cert Checker's every 4 months. Cert Checker's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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.
Cert Checker ships an update every 4 months, Heidi Wallet every 2 months. The most recent releases landed on September 20, 2026 and September 8, 2026 respectively.
| Parameter | Cert Checker | Heidi Wallet |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 20 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | Verein Österreichisches Sprachdiplom Deutsch | Ubique Innovation AG |
In-app purchases
Cert Checker
No in-app purchases
Heidi Wallet
No in-app purchases
Questions
Is Cert Checker free?
Is Heidi Wallet free?
Do Cert Checker or Heidi Wallet have ads?
Which is updated more often, Cert Checker or Heidi Wallet?
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