CodeBuilder vs IRONDOTS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Generate QR-Codes
- Generate Aztec-Codes
- Generate Datamatrix codes
- Export codes to PDF
- One-time ad removal purchase
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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.
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.
- Encrypt/decrypt messages to QR codes
- End-to-end encryption
- Offline operation
- Anonymous usage
- 256-bit asymmetric keys
- Compliant with European Data Protection Act
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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
Verdict
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
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.
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.
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.
| Parameter | CodeBuilder | IRONDOTS |
|---|---|---|
| Price | Free — better | $99.99 |
| Rating | 3.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 20 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Schrott | MICHAL NAPIORKOWSKI IT |
Customer experience
CodeBuilder
IRONDOTS
In-app purchases
CodeBuilder
- Remove ads$1.99
IRONDOTS
No in-app purchases








