Plaans vs OS/
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Plaans
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From our own experience in the construction field, we know that a huge amount of data needs to be collected and organized for quantity surveys and photo documentations of construction sites. In order to optimize our own workflow we have developed Plaans - a practical assistant for the daily use to support us handling the following, frequently recurring tasks: "Where should i put the camera, the various pens, the drawing board, the measuring laser, flashlight and the piles of building plans?" Plaans offers basic functions for recording quantity surveys directly on digital construction plans. This helps you keeping your hands free. *** "Where did I take this photo? In what direction did i look?" Take pictures and locate them on your floor plans - including the viewing direction. Place audio and text comments right where they need to be. *** "Lots of pictures, plans and comments. How do I get this organized?" Plaans automatically organizes all collected data in an well-arranged file and folder structure and prepares your projects in interactive presentations. The data and floor plans are easy to manage without additional software. *** Plaans at a glance: - Localized information on digital floor plans - Paperless assistence for quantity surveys - Photos with location and viewing direction indicator - Voice and text comments - Easy data management - Data export as interactive presentations *** Information about Plaans full version subscriptions: - In the full version you can use all features without limitations. - The subscriptions period is 1 month. - The subscription price is 19,99 β¬. - Payment will be charged to your iTunes account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. - Your account will be charged for renewal within 24-hours prior to the end of the current subscription period. Automatic renewals will cost the same price you were originally charged for the subscription. - You can manage your subscriptions and turn off auto-renewal by going to your Account Settings on the App Store after purchase. You can find our terms of service and privacy policy at: https://plaans.com/imprint?lang=en
OS/
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OS/ β Probably the first agency software that listens. For agencies, consulting firms, production studios, and other project-oriented companies of all sizes. OS/ is the next-generation project calculation and controlling software. Say hello to OS/ and simply dictate or write what you need help with: β Record your working hours effortlessly via voice input. β Find out who's not in the office today. β See which projects need controlling or can be invoiced. β Give team members access to projects and check who has booked time. β Create new projects and dictate the calculation.... and whatever else you need. Save a lot of work and gain more time for your colleagues and customers.
Screenshots
Verdict
The clearest difference is in-app purchases: OS/ at none against Plaans's 5. OS/ also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Plaans sells 5 in-app purchases, starting at $19.99 per month. OS/ asks for nothing beyond the download.
Plaans ships an update every 3 weeks, OS/ weekly. The most recent releases landed on May 16, 2026 and September 9, 2026 respectively.
| Parameter | Plaans | OS/ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Weekly β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.6 β better | 16.4 |
| Further details β not scored | ||
| Size | 10 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Mikavaa GmbH | 314 OS GmbH |
In-app purchases
Plaans
- Full Version$19.991 Month
- 5 additional credits$8.99
- 10 additional credits$17.99
- 25 additional credits$35.99
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- Plaans full version$89.99
OS/
No in-app purchases









