# Building Start vs Griswold Controls

The clearest difference is review sentiment: Griswold Controls at 100% against Building Start's 50%. Griswold Controls also leads on rating (5.0 vs 3.4) and iOS requirement (8.0 vs 15.0). Building Start's advantage is update cadence (monthly vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Griswold Controls holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews point the same way: 50% of Building Start's written reviews are positive against 100% of Griswold Controls's.

Building Start ships an update monthly, Griswold Controls every 2 months. The most recent releases landed on September 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Building Start | Griswold Controls |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (8 ratings)](https://appshunter.io/ios/app/building-start/id442975774/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/griswold-controls/id945593779/reviews)** |
| Number of ratings | **8** | 4 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 12 MB | 2 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Building Start](https://appshunter.io/developer/442975777) | [Griswold Controls](https://appshunter.io/developer/608685694) |

## What reviewers say

### Building Start

[App page](https://appshunter.io/ios/app/building-start/id442975774)

This platform digitizes field testing for construction and engineering projects. It allows for centralized test plan creation and offline execution on field devices, synchronizing data back to the cloud upon completion.

**Highlights:** Centralized test plan authoring, Push test plans to field devices, Offline field testing capabilities, Data synchronization to cloud, Digital capture of construction projects, Support for TAB, Building Startup, Commissioning, Energy Audits

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Griswold Controls

[App page](https://appshunter.io/ios/app/griswold-controls/id945593779)

This application assists users in selecting and sizing specific valves for HVAC systems. It supports Griswold QuickSet® Manual Balance Valves, as well as Unimizer® and Automizer® actuated ball valves.

**Highlights:** Valve sizing, Product selection, QuickSet® Manual Balance Valves, Actuated Ball Valves, Unimizer® support, Automizer® support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Building Start free?

Building Start is free to download, with no in-app purchases.

### Is Griswold Controls free?

Griswold Controls is free to download, with no in-app purchases.

### Which has better reviews, Building Start or Griswold Controls?

Griswold Controls is rated higher. Building Start averages 3.4 out of 5 from 8 ratings, while Griswold Controls averages 5.0 from 4 ratings.

### Do Building Start or Griswold Controls have ads?

Neither Building Start nor Griswold Controls shows ads.

### Which is updated more often, Building Start or Griswold Controls?

Building Start ships an update monthly, and Griswold Controls every 2 months. Most recently, Building Start was updated on September 24, 2026 and Griswold Controls on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*