# Gas Engineer Software vs Tradify

The clearest difference is in-app purchases: Tradify at none against Gas Engineer Software's 1. Gas Engineer Software's advantage is review sentiment (85% vs 62%). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Gas Engineer Software sells 1 one-off in-app purchase. Tradify asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Gas Engineer Software | Tradify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (179 ratings)](https://appshunter.io/ios/app/tradify-quote-and-invoice-tool/id984378901/reviews)** |
| Number of ratings | — | **179** |
| Positive reviews | **84.6% of reviews** | 62.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 196 MB | 102 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Software Works for You Ltd](https://appshunter.io/developer/771853288) | [Tradify Limited](https://appshunter.io/developer/680084836) |

## What reviewers say

### Gas Engineer Software

[App page](https://appshunter.io/ios/app/gas-engineer-software-ges/id771853285)

This comprehensive app helps gas, oil, and plumbing professionals streamline their business operations. It allows for the creation of industry-specific certificates, issuance of quotes and invoices, and efficient job scheduling. Manage your team, customers, and finances from any device, anywhere, saving time and boosting revenue.

**Highlights:** Create industry certificates, Issue quotes and invoices, Schedule jobs with calendar, Manage team and customers, Automated service reminders, Offline access

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Single Engineer - 12 Months Subscription | $19.00 | one-time |

**What reviewers like**

- 👍 Easy to use
- ⏱️ Time saver
- 💼 Professional appearance
- 📈 Scales with business growth
- 🛠️ Reliable day-to-day

**What reviewers complain about**

- 💰 Price keeps increasing
- 📉 No real improvement seen
- 😠 Greed perceived
- ⚠️ Unexpected maintenance
- ✍️ Small font size

**Reported bugs**

- Unexpected site shutdowns
- Syncing is slow
- Glitches in invoicing following a job report
- App has become very slow due to latest update
- Not usable at present time

**Requested features**

- Add multiple picture attachments
- Select several photos at once
- Flag jobs as finished
- Oil forms for non-OFTEC registered companies
- Calculate pipe work volume and purge volume


### Tradify

[App page](https://appshunter.io/ios/app/tradify-quote-and-invoice-tool/id984378901)

Streamline your trade business operations with this comprehensive tool for managing quotes, scheduling jobs, and sending invoices. Save time on administrative tasks and gain better control over your business finances and projects. Ideal for small to medium-sized trade businesses.

**Highlights:** Job tracking and scheduling, Quoting and invoicing, Timesheets and task management, Subcontractor management, Job costing reports, Accounting software sync, Online payment processing

**In-app purchases:** none

**What reviewers like**

- 🚀 Streamlines business operations
- 👍 Helps maintain professionalism
- 🚀 Organizes jobs and invoices
- 👍 Integrates well with accounting software
- 🚀 Saves time on admin tasks

**What reviewers complain about**

- 🐛 Notification issues and poor user experience
- 🐛 Slow performance in certain regions
- 🐛 Occasional app crashes and glitches
- 🔋 Requires constant internet connectivity
- 💰 Can get expensive with multiple users

**Reported bugs**

- Invoices incorrectly marked as paid
- Account deletion and cancellation issues
- Unreliable email and notification delivery
- Syncing problems between mobile and web apps

**Requested features**

- Offline mode functionality
- Better photo management and viewing
- Integration with calendars and CRM systems
- Customizable reporting and analytics
- Improved job scheduling and dispatch features


## Frequently asked questions

### Is Gas Engineer Software free?

Gas Engineer Software is free to download, with in-app purchases available.

### Is Tradify free?

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

### Do Gas Engineer Software or Tradify have ads?

Neither Gas Engineer Software nor Tradify shows ads.

### Which is updated more often, Gas Engineer Software or Tradify?

Gas Engineer Software ships an update weekly, and Tradify weekly. Most recently, Gas Engineer Software was updated on October 17, 2026 and Tradify on October 18, 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.*