Comparison

Building X Access vs CH Digit Access

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

Head to head
About

Building X Access

Features
Read full description

With Building X Access you will use your smart phone to open doors. With this app you will receive digital keys for doors that you are allowed to open.

About

CH Digit Access

Features
Read full description

Use CH Digit Access to access Web sites and networks or to digitally sign transactions in a highly secure and user-friendly way. CH Digit provides a time based 2-factor authentication solution for any remote access, protecting from hacking and theft. The OTP is unique for each transaction and can’t be re-used. After downloading and installing BS Digit Access on your iPhone, you will need to register it in order to activate it and make it unique for you. Your service provider will provide you with appropriate registration instructions. FEATURES: Fast authentication using notifications Asymmetric key protection Secure authentication using device mechanism Secure registration and activation. TOTP support Protection against wide range of attacks including: Phishing Man in the middle Brute Force attack on PIN. PIN or secrets attack by application reverse engineering or memory analysis. PIN prediction by Differential Power Analysis. Memory cloning. One iPhone application for all authentication needs. Intuitive interface.

Screenshots

Building X Access4 screens
CH Digit Access4 screens

Verdict

The call

The clearest difference is update cadence: Building X Access at every 4 weeks against CH Digit Access's every 19 months. CH Digit Access's advantage is iOS requirement (14.0 vs 16.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Building X Access ships an update every 4 weeks, CH Digit Access every 19 months. The most recent releases landed on July 9, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 4 level
Building X Access versus CH Digit Access: the parameters behind the verdict, then further details
ParameterBuilding X AccessCH Digit Access
PriceFreeFree
Update frequencyEvery 4 weeks — betterEvery 19 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPod — better
Requires iOS16.014.0 — better
Further details — not scored
Size22 MB132 MB
Age rating4+17+
DeveloperSiemens AGAltiPeak SA

In-app purchases

None

Building X Access

No in-app purchases

None

CH Digit Access

No in-app purchases

Questions

Is Building X Access free?
Building X Access is free to download, with no in-app purchases.
Is CH Digit Access free?
CH Digit Access is free to download, with no in-app purchases.
Do Building X Access or CH Digit Access have ads?
Neither Building X Access nor CH Digit Access shows ads.
Which is updated more often, Building X Access or CH Digit Access?
Building X Access ships an update every 4 weeks, and CH Digit Access every 19 months. Most recently, Building X Access was updated on July 9, 2026 and CH Digit Access on September 9, 2026.

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