# DQS Mobile vs Blood Oxygen SpO₂ Tracker

The clearest difference is review sentiment: DQS Mobile at 79% against Blood Oxygen SpO₂ Tracker's 7%. DQS Mobile also leads on rating (4.7 vs 3.5) and iOS requirement (15.0 vs 18.0). Blood Oxygen SpO₂ Tracker's advantage is monetization model (free with in-app purchases vs subscription) and ads (none vs shown). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. DQS Mobile sells 2 in-app purchases, starting at $2.99 per month and Blood Oxygen SpO₂ Tracker sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

DQS Mobile holds the better App Store score, 4.7 against 3.5. Both are backed by a comparable volume of ratings — 169 and 130 respectively. Written reviews point the same way: 79% of DQS Mobile's written reviews are positive against 7% of Blood Oxygen SpO₂ Tracker's.

DQS Mobile ships an update every 2 months, Blood Oxygen SpO₂ Tracker fortnightly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | DQS Mobile | Blood Oxygen SpO₂ Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (169 ratings)](https://appshunter.io/ios/app/dqs-mobile/id906923731/reviews)** | [3.5 (130 ratings)](https://appshunter.io/ios/app/blood-oxygen-spo-tracker/id1533800269/reviews) |
| Number of ratings | **169** | 130 |
| Positive reviews | **79.3% of reviews** | 7.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 45 MB | 8 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Jackson Forge Studios LLC](https://appshunter.io/developer/1704498376) | [Bernhard Hering](https://appshunter.io/developer/327542085) |

## What reviewers say

### DQS Mobile

[App page](https://appshunter.io/ios/app/dqs-mobile/id906923731)

Calculate your daily Diet Quality Score (DQS) based on food consumption. Track your progress with graphs of DQS, weight, and body fat over time. Set personal goals for weight, body fat, and DQS.

**Highlights:** Calculate daily Diet Quality Score (DQS), Log food servings by category, Track weight and body fat percentage, View progress graphs (DQS, weight, body fat), Set target DQS, weight, and body fat, Save DQS data over time

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DQS Pro Monthly | $2.99 | per month |
| DQS Pro Yearly | $24.99 | per year |

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🎯 Effective diet quality tracking without calorie counting
- ⚡ Quick and easy daily logging
- 📊 Holistic approach to nutrition and health
- 🎮 Gamified scoring system encourages healthy choices

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- 🔐 Login and password reset problems
- ❌ Data saving failures
- ⚙️ Configuration errors (RevenueCat issues)
- 🔄 Day navigation requires app restart

**Reported bugs**

- App crashes on startup
- Unable to add measurements without crashing
- Day navigation broken without restart
- Weight log only accepts body fat percentage
- Password reset email not triggered

**Requested features**

- Separate logging by meal (breakfast, lunch, dinner, snack)
- Notes or comments section for daily entries
- Color-coding for different meals
- Apple Health integration
- Searchable food database with category suggestions


### Blood Oxygen SpO₂ Tracker

[App page](https://appshunter.io/ios/app/blood-oxygen-spo-tracker/id1533800269)

Track your blood oxygen saturation (SpO₂) with smart alerts and historical data. Understand your overall wellness and make informed health decisions with detailed charts and insights on your iPhone and Apple Watch.

**Highlights:** View latest SpO₂ measurement, Detailed 7-day averages and charts, Custom low reading notifications, iOS and watchOS widgets/complications, Elegant design with clear insights

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $11.99 | per year |
| Activate Full Access | $79.99 | one-time |

**What reviewers like**

- 🚀 Instant blood oxygen readings
- 👍 Helpful for high altitude regions
- 🔋 Efficient battery usage

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 🚫 Doesn't work with older Apple Watches
- 📱 Incompatible with certain iPhone models
- 💰 Overpriced for limited functionality

**Reported bugs**

- Delayed alert notifications
- Inability to view previous readings
- Complication not working as expected

**Requested features**

- PDF export of historical data
- Customizable alert thresholds
- Improved data visualization


## Frequently asked questions

### Is DQS Mobile free?

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

### Is Blood Oxygen SpO₂ Tracker free?

Blood Oxygen SpO₂ Tracker is free to download, with in-app purchases available.

### Which has better reviews, DQS Mobile or Blood Oxygen SpO₂ Tracker?

DQS Mobile is rated higher. DQS Mobile averages 4.7 out of 5 from 169 ratings, while Blood Oxygen SpO₂ Tracker averages 3.5 from 130 ratings.

### Do DQS Mobile or Blood Oxygen SpO₂ Tracker have ads?

DQS Mobile shows ads; Blood Oxygen SpO₂ Tracker does not.

### Which is updated more often, DQS Mobile or Blood Oxygen SpO₂ Tracker?

DQS Mobile ships an update every 2 months, and Blood Oxygen SpO₂ Tracker fortnightly. Most recently, DQS Mobile was updated on November 1, 2026 and Blood Oxygen SpO₂ Tracker on November 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.*