Comparison

BauButler vs IRONDOTS CHAT

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

Head to head
About

BauButler

Features
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BauButler macht Schluss mit fehlenden Dokumentationen und unvollständigen Arbeitszeitnachweisen. Viele Informationen, die normalerweise auf Zetteln niedergeschrieben sind, lassen sich viel einfacher und vor allen Dingen sicherer digital verwalten. Durch diese strukturierte Kommunikation zwischen Büro und Baustellen sparst Du Zeit, Geld und somit auch Nerven. Funktionen: · Arbeitszeiterfassung, mobil und im Büro · Baudokumentation mit Fotos, Aufmaßen, Textbausteinen, Freitext und Unterschriften direkt in der App · Kunden- und Projektverwaltung mit Baustellenadresse, Ausführungszeitraum und Fotos (wie Skizzen und besonderen Hinweisen) · Arbeitsauftragsverwaltung · Vorplanungstafel Die Registrierung ist über die Webseite www.baubutler.de möglich und erfordert einen gültigen Nutzungsvertrag. Fragen zum Leistungsumfang oder zur technischen Integration? Gerne kannst Du uns unter info@baubutler.de kontaktieren.

About

IRONDOTS CHAT

This app enables secure, encrypted text messaging solely through sound waves, without requiring an internet connection. It prioritizes user privacy with anonymous operation and robust end-to-end encryption, ensuring messages are unreadable by unauthorized parties.

Highlights
  • Encrypted text messaging via sound
  • Offline operation, no internet needed
  • Anonymous usage, no registration required
  • End-to-end encryption
  • Physical separation for security
  • Compliant with European Data Protection Act
Features
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IRONDOTS CHAT allows you to send and receive encrypted text messages through sound waves. The app does not connect to the internet and all encrypted messages are only transmitted by sound or ultrasound. To receive incoming messages, you only need to allow access to your device's microphone. THE IRONDOTSCHAT PRINCIPLE IRONDOTSCHAT 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 40 characters encrypted through sound waves. COMMUNICATE WITHOUT TRACES IRONDOTSCHAT 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 IRONDOTSCHAT is not financed by advertising and does not collect user data. SUPPORT / CONTACT Support: security@irondots.com

Screenshots

BauButler4 screens
IRONDOTS CHAT4 screens

Verdict

The call

The clearest difference is in-app purchases: BauButler at none against IRONDOTS CHAT's 1. BauButler also leads on update cadence (every 3 months vs every 6 months). On price, ads, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. IRONDOTS CHAT sells 1 one-off in-app purchase. BauButler asks for nothing beyond the download.

UpkeepUpdate frequency

BauButler ships an update every 3 months, IRONDOTS CHAT every 6 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 6 level
BauButler versus IRONDOTS CHAT: the parameters behind the verdict, then further details
ParameterBauButlerIRONDOTS CHAT
PriceFreeFree
Positive reviews—60.0% of reviews
Update frequencyEvery 3 months — betterEvery 6 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.514.0 — better
Further details — not scored
Size58 MB36 MB
Age rating4+4+
Developerambigus GmbHMICHAL NAPIORKOWSKI IT

In-app purchases

None

BauButler

No in-app purchases

1 purchases

IRONDOTS CHAT

One-time1
  • Export/Import Private Key$29.99

Questions

Is BauButler free?
BauButler is free to download, with no in-app purchases.
Is IRONDOTS CHAT free?
IRONDOTS CHAT is free to download, with in-app purchases available.
Do BauButler or IRONDOTS CHAT have ads?
Neither BauButler nor IRONDOTS CHAT shows ads.
Which is updated more often, BauButler or IRONDOTS CHAT?
BauButler ships an update every 3 months, and IRONDOTS CHAT every 6 months. Most recently, BauButler was updated on October 27, 2026 and IRONDOTS CHAT on October 24, 2026.

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