ZENTRA Field vs tTEM controller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZENTRA Field
Access and analyze your field data remotely with custom charts and real-time notifications. This app helps you monitor site conditions, track important trends, and reduce manual data processing.
- Customizable field data charts
- Real-time data visualization
- Out-of-range data notifications
- Device battery status checks
- Near real-time site condition monitoring
- Works with ZENTRA Cloud
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ZENTRA Field App Connect to your field data. Anytime. Anywhere. Displays custom charts with field status Get notifications when data are out of set target range(s) Check last readings and battery status on devices Use ZENTRA Field to see and analyze your data in near-real time from wherever you are. More data and fewer resources mean you need help to get your data to a place you can use. ZENTRA Field works together with ZENTRA Cloud to reduce labor and time. Now, see important trending information as it happens, instead of having to comb through imported spreadsheets. Near-real-time visualization of several different data streams means you can easily check on current site conditions, such as recharge from the last rain event or plant available water. ZENTRA Field and ZENTRA Cloud work together to simplify your ability to visualize your data.
tTEM controller
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The tTEM Controller is an app designed to operate and manage the ttem geoscanner instrument developed and sold by TEMcompany, specifically for the ttem2.0 model. This app allows users to initiate measurements, display real-time location, and provide GPS tracking on either OpenStreetMap or a custom background map provided by the user.
Screenshots
Verdict
ZENTRA Field and tTEM controller are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
ZENTRA Field ships an update every 7 months, tTEM controller every 4 months. The most recent releases landed on September 23, 2026 and September 29, 2026 respectively.
| Parameter | ZENTRA Field | tTEM controller |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 29 MB | 35 MB |
| Age rating | 4+ | 17+ |
| Developer | METER Group, Inc. | Temcompany ApS |
In-app purchases
ZENTRA Field
No in-app purchases
tTEM controller
No in-app purchases
Questions
Is ZENTRA Field free?
Is tTEM controller free?
Do ZENTRA Field or tTEM controller have ads?
Which is updated more often, ZENTRA Field or tTEM controller?
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