# Tempdrop vs kegg

The clearest difference is review sentiment: kegg at 76% against Tempdrop's 38%. kegg also leads on in-app purchases (none vs 6) and update cadence (every 3 weeks vs every 2 months). Tempdrop's advantage is rating (4.2 vs 4.0) and ratings volume (705 vs 140). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Tempdrop sells 6 in-app purchases, starting at $2.99 per month. kegg asks for nothing beyond the download.

Tempdrop holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: Tempdrop has 705 ratings behind it against 140, so its average is the more settled of the two. Written reviews complicate that: 38% of Tempdrop's written reviews are positive against 76% of kegg's, so the app with the better star average is not the one people write more warmly about.

Tempdrop ships an update every 2 months, kegg every 3 weeks. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Tempdrop | kegg |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (705 ratings)](https://appshunter.io/ios/app/tempdrop/id1199061141/reviews)** | [4.0 (140 ratings)](https://appshunter.io/ios/app/kegg/id1462248924/reviews) |
| Number of ratings | **705** | 140 |
| Positive reviews | 38.2% of reviews | **76.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 104 MB | 52 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Tempdrop Inc](https://appshunter.io/developer/1674554833) | [Lady Technologies, Inc.](https://appshunter.io/developer/1462248923) |

## 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


### kegg

[App page](https://appshunter.io/ios/app/kegg/id1462248924)

This medical-grade device offers accurate fertility tracking by analyzing cervical fluid in just two minutes daily. It helps identify fertile windows for conception and provides insights into ovulation, while also offering guided pelvic floor exercises for health and recovery.

**Highlights:** Medical-grade fertility tracking, Cervical fluid analysis, Fertile window identification, Ovulation probability insights, Guided kegel exercises, Pelvic floor health optimization

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 💡 Provides insights into cycle
- 👍 Helpful community support
- 🚀 Convenient daily tracking
- 🚀 Accurate fertility predictions

**What reviewers complain about**

- 🐛 Buggy app with poor navigation
- 🐛 Inconsistent fertility predictions
- 🐛 Difficult to interpret data
- 🐛 Frequent login issues
- 🐛 Notifications don't always work

**Reported bugs**

- App freezes and crashes frequently
- Syncing issues between device and app
- Fertility predictions do not align with other methods
- Constant logout prompts disrupt user experience

**Requested features**

- Add ability to track period and symptoms
- Improve app design and user experience
- Provide more detailed data analysis and insights
- Integrate with other fertility tracking apps


## Frequently asked questions

### Is Tempdrop free?

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

### Is kegg free?

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

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

Tempdrop is rated higher. Tempdrop averages 4.2 out of 5 from 705 ratings, while kegg averages 4.0 from 140 ratings.

### Do Tempdrop or kegg have ads?

Neither Tempdrop nor kegg shows ads.

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

Tempdrop ships an update every 2 months, and kegg every 3 weeks. Most recently, Tempdrop was updated on September 23, 2026 and kegg on September 25, 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.*