# TachyMon vs Embody Space

The clearest difference is rating: Embody Space at 4.4 against TachyMon's 3.8. Embody Space also leads on update cadence (every 3 weeks vs every 3 months) and review sentiment (73% vs 58%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. TachyMon sells 2 in-app purchases, starting at $2.99 per month and Embody Space sells 4 in-app purchases, starting at $4.95 per month. Whichever you choose, the download price is not the number that matters.

Embody Space holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 288 and 176 respectively. Written reviews point the same way: 58% of TachyMon's written reviews are positive against 73% of Embody Space's.

TachyMon ships an update every 3 months, Embody Space every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | TachyMon | Embody Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (288 ratings)](https://appshunter.io/ios/app/tachymon/id1603517412/reviews) | **[4.4 (176 ratings)](https://appshunter.io/ios/app/embody-space/id6451215093/reviews)** |
| Number of ratings | **288** | 176 |
| Positive reviews | 58.0% of reviews | **72.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 36 MB | 48 MB |
| Requires iOS | 16.4 | **13.4** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Whip Development Inc.](https://appshunter.io/developer/1603514887) | [Embody Space, Inc.](https://appshunter.io/developer/1697195773) |

## What reviewers say

### TachyMon

[App page](https://appshunter.io/ios/app/tachymon/id1603517412)

Receive immediate alerts for significant heart rate fluctuations, ideal for conditions like POTS or during exercise. Customize thresholds and receive detailed event tracking. Premium features offer advanced data visualization and reporting.

**Highlights:** Customizable heart rate threshold alerts, Haptic feedback for alerts, Real-time heart rate and average display, Alert event tracking and logging, Temporary alert silencing, Detailed monitoring data review, Shareable PDF reports (premium)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TachyMon Premium Monthly | $2.99 | per month |
| TachyMon Premium Annual | $19.99 | per year |

**What reviewers like**

- 🚀 Continuous monitoring
- 🚨 Helpful alerts for heart rate spikes/drops
- 📊 Useful data tracking and visualization
- 🤖 Customizable settings and thresholds
- 💯 Accurate heart rate measurements

**What reviewers complain about**

- 🔋 Drains Apple Watch battery quickly
- 🔒 Paywalled features that were previously free
- 🤯 Buggy and unreliable at times
- 📱 Lack of companion iPhone app for data review
- 🔇 Limited notification/alert customization

**Reported bugs**

- Frequent disconnections from heart rate monitor
- Inconsistent data sync between watch and phone
- Inability to reinstall app on new devices
- Freezing and crashing issues on latest updates

**Requested features**

- Add ability to log symptoms and notes
- Implement emergency contact alerts
- Improve data export and sharing options
- Enhance graphing and trend analysis tools
- Optimize battery usage and background monitoring


### Embody Space

[App page](https://appshunter.io/ios/app/embody-space/id6451215093)

A privacy-focused app that helps you understand and track your menstrual cycle. It offers effortless logging of symptoms and moods, providing comprehensive insights and educational resources to deepen your body literacy.

**Highlights:** Private by default (local-only data), Effortless logging of symptoms and moods, Comprehensive cycle insights, Educational resources on menstrual health, Ovulation tracking, Body literacy building

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Essential | $4.95 | per month |
| Monthly | $11.95 | per month |
| Monthly Supporter | $15.95 | per month |
| Annual Subscription | $79.99 | per year |

**What reviewers like**

- 💎 Informative and educational
- 🔒 Privacy-focused
- 🎨 Aesthetically pleasing design
- 💰 Completely free to use
- 🤗 Helpful and supportive for women's health

**What reviewers complain about**

- 🕰️ Inaccurate period predictions
- 🤔 Confusing or difficult to navigate
- 🔍 Limited data history input
- 🗓️ Inability to log end of cycle

**Reported bugs**

- Data corruption or loss
- App crashes or freezes

**Requested features**

- Dark mode option
- Partner/shared tracking feature
- Basal body temperature (BBT) tracking
- Longer data history input
- Ability to log end of cycle


## Frequently asked questions

### Is TachyMon free?

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

### Is Embody Space free?

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

### Which has better reviews, TachyMon or Embody Space?

Embody Space is rated higher. TachyMon averages 3.8 out of 5 from 288 ratings, while Embody Space averages 4.4 from 176 ratings.

### Do TachyMon or Embody Space have ads?

Neither TachyMon nor Embody Space shows ads.

### Which is updated more often, TachyMon or Embody Space?

TachyMon ships an update every 3 months, and Embody Space every 3 weeks. Most recently, TachyMon was updated on November 3, 2026 and Embody Space on November 3, 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.*