# telliSize vs ServiceDash

The clearest difference is in-app purchases: telliSize at none against ServiceDash's 4. ServiceDash's advantage is update cadence (weekly vs every 9 months) and iOS requirement (17.0 vs 27.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ServiceDash sells 4 in-app purchases, starting at $24.99 per month. telliSize asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for telliSize against 5.0 for ServiceDash. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

telliSize ships an update every 9 months, ServiceDash weekly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | telliSize | ServiceDash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/tellisize/id1178730332/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/servicedash-service-crm/id6745899879/reviews) |
| Number of ratings | **3** | 2 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 16 MB | 81 MB |
| Requires iOS | 27.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Intellihot](https://appshunter.io/developer/1073126287) | [Irvinesoft Inc](https://appshunter.io/developer/1654264185) |

## What reviewers say

### telliSize

[App page](https://appshunter.io/ios/app/tellisize/id1178730332)

Quickly size water heater applications and generate project schematics, plumbing layouts, and submittals. Calculations are based on real-world test data and proven sizing methods.

**Highlights:** Water heater application sizing, Project schematics generation, Plumbing layout creation, Submittal package generation, Real-world test data calculations

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

**In-app purchases:** none


### ServiceDash

[App page](https://appshunter.io/ios/app/servicedash-service-crm/id6745899879)

Manage your entire field service operation from a single application. Streamline quoting, scheduling, dispatching, work order tracking, and invoicing. Accept payments and communicate with clients seamlessly.

**Highlights:** Professional quotes and estimates, Drag-and-drop scheduling and dispatch, Work order tracking with checklists, Invoice creation and payment acceptance, Customer appointment confirmations, Client and property history tracking, Team collaboration and permissions

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $24.99 | per month |
| Team | $49.99 | per month |
| Business | $99.99 | per month |
| Pro (Yearly) | $199.99 | per year |


## Frequently asked questions

### Is telliSize free?

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

### Is ServiceDash free?

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

### Which has better reviews, telliSize or ServiceDash?

telliSize and ServiceDash are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do telliSize or ServiceDash have ads?

Neither telliSize nor ServiceDash shows ads.

### Which is updated more often, telliSize or ServiceDash?

telliSize ships an update every 9 months, and ServiceDash weekly. Most recently, telliSize was updated on November 2, 2026 and ServiceDash on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*