# TachyMon vs Juno

The clearest difference is rating: Juno at 4.8 against TachyMon's 3.8. Juno also leads on update cadence (weekly vs every 3 months) and ratings volume (11K vs 288). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. TachyMon sells 2 in-app purchases, starting at $2.99 per month and Juno sells 10 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Juno holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Juno has 11K ratings behind it against 288, so its average is the more settled of the two. Written reviews point the same way: 58% of TachyMon's written reviews are positive against 70% of Juno's.

TachyMon ships an update every 3 months, Juno weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TachyMon | Juno |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (288 ratings)](https://appshunter.io/ios/app/tachymon/id1603517412/reviews) | **[4.8 (11K ratings)](https://appshunter.io/ios/app/juno-chronic-illness-support/id6749455368/reviews)** |
| Number of ratings | 288 | **11K** |
| Positive reviews | 58.0% of reviews | **70.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#161** |
| Size | 36 MB | 252 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 9+ | 17+ |
| Developer | [Whip Development Inc.](https://appshunter.io/developer/1603514887) | [Marshall Gould](https://appshunter.io/developer/1829290316) |

## 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


### Juno

[App page](https://appshunter.io/ios/app/juno-chronic-illness-support/id6749455368)

**Currently charting:** #161 Top Free · Health & Fitness, #163 Top Grossing · Health & Fitness (US App Store)

This app provides a non-judgmental companion for individuals living with chronic illnesses. It offers a safe space to discuss symptoms, track health data, and gain insights without unsolicited advice. Designed by those who understand, it offers personalized support for daily challenges.

**Highlights:** AI-powered chronic illness companion, Symptom and energy level logging, Pattern and trigger identification, Health diary and insights, Voice or text conversations, Personalized condition support

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Juno Pro Weekly | $4.99 | per 7 days |
| Juno Pro Weekly | $6.99 | per 7 days |
| Juno Pro Monthly Discounted | $9.99 | per month |
| Juno Pro Monthly | $14.99 | per month |
| Juno Pro Monthly | $19.99 | per month |
| Juno Pro Yearly Discounted | $39.99 | per year |
| Quarterly | $44.99 | per 3 months |
| Juno Pro Yearly | $99.99 | per year |
| Juno Pro Yearly | $99.99 | per year |
| Juno Pro - Yearly Special | $59.99 | one-time |

**What reviewers like**

- 👍 Helpful and supportive app
- 🚀 Great AI feature
- 💡 Innovative and impressive

**What reviewers complain about**

- 🐛 Paid app with limited free access
- 🐛 Bugs and glitches in the app
- 😡 Insensitive marketing tactics

**Reported bugs**

- Inability to save profile details
- Paid features not working as expected

**Requested features**

- Improve free access and pricing model
- Fix bugs and stability issues


## Frequently asked questions

### Is TachyMon free?

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

### Is Juno free?

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

### Which has better reviews, TachyMon or Juno?

Juno is rated higher. TachyMon averages 3.8 out of 5 from 288 ratings, while Juno averages 4.8 from 11K ratings.

### Do TachyMon or Juno have ads?

Neither TachyMon nor Juno shows ads.

### Which is updated more often, TachyMon or Juno?

TachyMon ships an update every 3 months, and Juno weekly. Most recently, TachyMon was updated on October 27, 2026 and Juno on October 28, 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.*