# Tempdrop vs ThermoRegisterPlus

The clearest difference is review sentiment: ThermoRegisterPlus at 100% against Tempdrop's 38%. ThermoRegisterPlus also leads on rating (5.0 vs 4.2) and iOS requirement (8.0 vs 15.0). Tempdrop's advantage is ads (none vs shown) and ratings volume (711 vs 1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Tempdrop sells 6 in-app purchases, starting at $2.99 per month and ThermoRegisterPlus sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ThermoRegisterPlus holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Tempdrop has 711 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 38% of Tempdrop's written reviews are positive against 100% of ThermoRegisterPlus's.

Tempdrop ships an update every 2 months, ThermoRegisterPlus every 14 months. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Tempdrop | ThermoRegisterPlus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (711 ratings)](https://appshunter.io/ios/app/tempdrop/id1199061141/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thermoregisterplus/id1507124424/reviews)** |
| Number of ratings | **711** | 1 |
| Positive reviews | 38.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 14 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 103 MB | 9 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Tempdrop Inc](https://appshunter.io/developer/1674554833) | [Airwire products.](https://appshunter.io/developer/471910489) |

## What reviewers say

### Tempdrop

[App page](https://appshunter.io/ios/app/tempdrop/id1199061141)

This app works with a specialized thermometer to track subtle overnight temperature changes. It helps identify hormonal fluctuations throughout the menstrual cycle, pinpoint ovulation, and predict cycle phases. The data supports fertility awareness and cycle tracking.

**Highlights:** Basal body temperature tracking, Ovulation pinpointing, Menstrual cycle prediction, Hormonal fluctuation correlation, Fertility awareness support

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tempdrop Promo Premium monthly | $2.99 | per month |
| Tempdrop Premium monthly | $6.00 | per month |
| Tempdrop Promo Premium quarterly | $7.99 | per 3 months |
| Tempdrop Premium quarterly | $15.00 | per 3 months |
| Tempdrop Promo Premium yearly | $24.99 | per year |
| Tempdrop Premium yearly* | $48.00 | per year |

**What reviewers like**

- 🚀 Convenient and easy to use
- 🚀 Accurate temperature tracking
- 👍 Helpful for fertility awareness and family planning
- 👍 Empowering for understanding one's body
- 👍 Useful for tracking hormonal fluctuations

**What reviewers complain about**

- 🐛 Issues with app syncing and functionality
- 🔍 Limited symptom and data tracking options
- 💰 Expensive device and subscription model
- 👎 Poor customer service and support
- 👎 Unreliable hardware and short device lifespan

**Reported bugs**

- App crashes and freezes
- Issues with syncing device data
- Inaccurate cycle predictions and phase tracking
- Temperature data changes over time

**Requested features**

- Improved sleep tracking capabilities
- More customizable symptom and data tracking
- Ability to manually confirm ovulation
- Integration with other fertility/health apps
- Support for irregular cycles and postpartum/breastfeeding phases


### ThermoRegisterPlus

[App page](https://appshunter.io/ios/app/thermoregisterplus/id1507124424)

Record your body temperature and basal body temperature data directly to Apple Health. This application allows manual entry of temperature readings from your phone, helping you track your health metrics.

**Highlights:** Register body temperature data, Register basal body temperature data, Data syncs to Health app, Manual data entry via phone

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThermoRegister Pro ver. | $0.99 | one-time |


## Frequently asked questions

### Is Tempdrop free?

Tempdrop is free to download, with in-app purchases available.

### Is ThermoRegisterPlus free?

ThermoRegisterPlus is free to download, with in-app purchases available.

### Which has better reviews, Tempdrop or ThermoRegisterPlus?

ThermoRegisterPlus is rated higher. Tempdrop averages 4.2 out of 5 from 711 ratings, while ThermoRegisterPlus averages 5.0 from 1 ratings.

### Do Tempdrop or ThermoRegisterPlus have ads?

ThermoRegisterPlus shows ads; Tempdrop does not.

### Which is updated more often, Tempdrop or ThermoRegisterPlus?

Tempdrop ships an update every 2 months, and ThermoRegisterPlus every 14 months. Most recently, Tempdrop was updated on October 15, 2026 and ThermoRegisterPlus 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.*