Comparison

CodeBuilder vs IRONDOTS

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

Head to head
About

CodeBuilder

Easily create QR-Codes, Aztec-Codes, and Datamatrix codes by entering text and selecting a code type. Generated codes can be exported to PDF documents. An optional one-time purchase removes occasional ads.

Highlights
  • Generate QR-Codes
  • Generate Aztec-Codes
  • Generate Datamatrix codes
  • Export codes to PDF
  • One-time ad removal purchase
Read full description

CodeBuilder is an easy to use app which creates QR-Codes, Aztec-Codes and Datamatrix. Just enter the text you want to encode, choose the type of your code and your code will be generated. Generated Codes can be exported into a PDF document. This app is free to use but occasionally ads are shown while codes are being generated. To remove the ads you can do a one-time In-App-Purchase.

About

IRONDOTS

Securely encrypt and decrypt messages into QR codes for private communication. This app offers end-to-end encryption and offline operation, ensuring your messages are protected from unauthorized access. Communicate anonymously without registration or internet connection.

Highlights
  • Encrypt/decrypt messages to QR codes
  • End-to-end encryption
  • Offline operation
  • Anonymous usage
  • 256-bit asymmetric keys
  • Compliant with European Data Protection Act
Features
Read full description

IRONDOTS allows you to encrypt & decrypt messages into / from a QR code. THE IRONDOTS PRINCIPLE IRONDOTS protects your messages from access by hackers, companies and governments through physical separation and end-to-end encryption. The app can be used completely anonymously (without registration; without providing a phone number or email address). IRONDOTS is based on the "box" model of the open source NaCl Networking and Cryptography Library to transmit messages with a maximum length of 160 characters encrypted into a QR code. COMMUNICATE WITHOUT TRACES IRONDOTS is designed for offline operation, without an internet connection. We have simply not implemented the possibility to communicate with the Internet or other devices. Your secret certificate is stored encrypted with your password on the mobile phone/tablet. All this prevents the collection and misuse of personal information. IRONDOTS is fully compliant with the European Data Protection Act (DPA). BEST ENCRYPTION All messages are always end-to-end encrypted. You can be sure that no one except the intended recipient can read your messages. The key pair is generated and stored encrypted directly on your device. 256-bit long asymmetric keys are used, which are generated using elliptic curve cryptography (Curve25519). This asymmetric key is used to obtain a unique 256-bit symmetric key for each message sent. NO ADS, NO TRACKERS, NO COOKIES IRONDOTS is not financed by advertising and does not collect user data. SUPPORT / CONTACT Support for security researchers, whistleblowers, freedom fighters & free press: security@irondots.com

Screenshots

CodeBuilder4 screens
IRONDOTS4 screens

Verdict

The call

The clearest difference is review sentiment: IRONDOTS at 100% against CodeBuilder's 50%. IRONDOTS also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 1). CodeBuilder's advantage is price (Free vs $99.99). On ratings volume, update cadence, ads 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

CodeBuilder is free to download; IRONDOTS costs $99.99 up front. CodeBuilder sells 1 one-off in-app purchase. IRONDOTS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

IRONDOTS holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 50% of CodeBuilder's written reviews are positive against 100% of IRONDOTS's.

UpkeepUpdate frequency

CodeBuilder ships an update every 3 months, IRONDOTS every 4 months. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
CodeBuilder versus IRONDOTS: the parameters behind the verdict, then further details
ParameterCodeBuilderIRONDOTS
PriceFree — better$99.99
Rating3.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better14.0
Further details — not scored
Size20 MB37 MB
Age rating4+4+
DeveloperMartin SchrottMICHAL NAPIORKOWSKI IT

Customer experience

CodeBuilder

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

IRONDOTS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

CodeBuilder

One-time1
  • Remove ads$1.99
None

IRONDOTS

No in-app purchases

Questions

Is CodeBuilder free?
CodeBuilder is free to download, with in-app purchases available.
Is IRONDOTS free?
IRONDOTS costs $99.99, with no in-app purchases.
Which has better reviews, CodeBuilder or IRONDOTS?
IRONDOTS is rated higher. CodeBuilder averages 3.0 out of 5 from 1 ratings, while IRONDOTS averages 5.0 from 1 ratings.
Do CodeBuilder or IRONDOTS have ads?
Neither CodeBuilder nor IRONDOTS shows ads.
Which is updated more often, CodeBuilder or IRONDOTS?
CodeBuilder ships an update every 3 months, and IRONDOTS every 4 months. Most recently, CodeBuilder was updated on September 30, 2026 and IRONDOTS on October 10, 2026.

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