# SupplyMaster vs Datum Connect

The clearest difference is update cadence: SupplyMaster at every 5 weeks against Datum Connect's every 7 months. Datum Connect's advantage is iOS requirement (9.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SupplyMaster ships an update every 5 weeks, Datum Connect every 7 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SupplyMaster | Datum Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/supplymaster/id1204680294/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 11.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 7 months |
| Monetization | Free | — |
| Size | 18 MB | 73 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TIMEGUARD LTD](https://appshunter.io/developer/1204680293) | [DATUM ELECTRONICS LTD](https://appshunter.io/developer/1368397156) |

## What reviewers say

### SupplyMaster

[App page](https://appshunter.io/ios/app/supplymaster/id1204680294)

Control your immersion heater or lighting remotely via your phone or tablet. Save money by adjusting schedules from anywhere, ensuring you only use energy when needed. Offers multiple operating modes for flexible control.

**Highlights:** Remote programming, Energy saving, Auto, Permanent Off, Permanent On modes, Holiday mode, Advance and Boost functions

**Features:** macOS Compatibility

**In-app purchases:** none


### Datum Connect

[App page](https://appshunter.io/ios/app/datum-connect/id1515227079)

**In-app purchases:** none


## Frequently asked questions

### Is SupplyMaster free?

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

### Is Datum Connect free?

Datum Connect is free to download, with no in-app purchases.

### Do SupplyMaster or Datum Connect have ads?

Neither SupplyMaster nor Datum Connect shows ads.

### Which is updated more often, SupplyMaster or Datum Connect?

SupplyMaster ships an update every 5 weeks, and Datum Connect every 7 months. Most recently, SupplyMaster was updated on October 7, 2026 and Datum Connect on October 4, 2026.

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