Franx Authenticator vs Stackr Invest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Franx Authenticator
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With the Franx authentication app, you can securely receive your login codes and payment approval codes to help make the login and approval process quick, easy and secure. You will also be able to receive your Franx notifications directly in the app. After you have installed and authorised the app, you will immediately begin receiving your codes and notifications.
Stackr Invest
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Stackr is a global long-term savings solution, through which a personalized trust structure allows investors to hold a diversified portfolio of investments. The intersection of traditional finance and modern-day financial technology has enabled Stackr to pioneer this innovative, secure and flexible savings solution. Stackr gives people what they need, the flexibility and security to live their lives on their terms now, at the same time enabling them to save for the future – whatever it may hold...
Screenshots
Verdict
The clearest difference is update cadence: Stackr Invest at every 3 months against Franx Authenticator's every 16 months. Franx Authenticator's advantage is iOS requirement (12.0 vs 14.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Franx Authenticator ships an update every 16 months, Stackr Invest every 3 months. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.
| Parameter | Franx Authenticator | Stackr Invest |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 16 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 82 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Franx B.V. | Stackr Cayman Ltd |
In-app purchases
Franx Authenticator
No in-app purchases
Stackr Invest
No in-app purchases
Questions
Is Franx Authenticator free?
Is Stackr Invest free?
Do Franx Authenticator or Stackr Invest have ads?
Which is updated more often, Franx Authenticator or Stackr Invest?
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