# owadio vs HeatSig

The clearest difference is ads: HeatSig at none against owadio's shown. HeatSig also leads on update cadence (every 2 weeks vs every 4 months) and iOS requirement (15.1 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

owadio ships an update every 4 months, HeatSig every 2 weeks. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | owadio | HeatSig |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/owadio/id1545809203/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 60 MB | 68 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Ajay Shanker](https://appshunter.io/developer/1545809205) | [Heatsig Pte. Ltd.](https://appshunter.io/developer/1835618366) |

## What reviewers say

### owadio

[App page](https://appshunter.io/ios/app/owadio/id1545809203)

This app helps National Service personnel manage their military commitments and personal well-being. It offers tools for tracking leave, promotions, fitness, and important dates, alongside useful resources and weather updates.

**Highlights:** Light/Dark Mode, Fitness Log, IPPT Calculator, Leave & OIL Tracker, Days to ORD Countdown, HealthKit/GoogleFit Integration, iOS 14 Widgets & Apple Watch Support

**In-app purchases:** none


### HeatSig

[App page](https://appshunter.io/ios/app/heatsig/id6751530567)

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

**In-app purchases:** none


## Frequently asked questions

### Is owadio free?

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

### Is HeatSig free?

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

### Do owadio or HeatSig have ads?

owadio shows ads; HeatSig does not.

### Which is updated more often, owadio or HeatSig?

owadio ships an update every 4 months, and HeatSig every 2 weeks. Most recently, owadio was updated on October 17, 2026 and HeatSig on October 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.*