Units vs ConcReoEst
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Units
Easily convert between a wide range of measurement units and currencies. Features a clear and simple interface for quick conversions of length, mass, volume, speed, and more. Supports popular currencies and common units for everyday use.
- Extensive unit conversions
- Multiple currency support
- Easy and clear handling
- Converts length, mass, volume
- Supports speed, area, pressure
- Converts time and temperature
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Unit converter with many different units of measurement and currencies. Very easy handling. Clearly arranged. The most important units are amongst others: - Currencies: United States dollar, Euro, Japanese yen, Pound sterling - Length: Mile, kilometer, meter, inch - Mass: Kilogram, pound, ounce, gram - Volume: Liter, gallon (several) - Speed - Area - Units of information - Pressure - Power - Time - Temperature Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ConcReoEst
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Designed for engineers, contractors, and quantity surveyors, the Reinforcing Estimate App offers a robust toolset for quickly quantifying reinforcing across various structural elements. Whether you’re working on pad footings, piles, slabs, or beams/columns, this app provides the flexibility to adjust reinforcing layers within the structural elements effortlessly. The key features are the following: 1) Easily adjust and estimate reinforcing for multiple structural elements. 2) Visual colour alerts to highlight compliance with min reinforcing to AS3600. 3) Reinforcing properties for standard reinforcing, mesh and trench mesh. 4) Print out your results with Project Name, Location of estimate and Name of Estimator as well as your company Logo 5) Detailed instructions for the use of each element.
Screenshots
Verdict
The clearest difference is in-app purchases: ConcReoEst at none against Units's 3. ConcReoEst also leads on update cadence (weekly vs every 5 weeks). Units's advantage is device support (4 vs 2). On price, ads 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
Both are free to download. Units sells 3 in-app purchases, starting at $0.99 per month. ConcReoEst asks for nothing beyond the download.
Units ships an update every 5 weeks, ConcReoEst weekly. Both last shipped on October 27, 2026.
| Parameter | Units | ConcReoEst |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (262 ratings) — better | — |
| Positive reviews | 45.5% of reviews | — |
| Number of ratings | 262 — better | — |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Andreas Maier | CRAIG M SINCLAIR |
In-app purchases
Units
- Monthly7 Days trial$0.991 Month
- Yearly7 Days trial$4.991 Year
- One time purchase$9.99
ConcReoEst
No in-app purchases
