# TTSmanual vs Lowrance System Builder

The clearest difference is iOS requirement: TTSmanual at 9.0 against Lowrance System Builder's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

TTSmanual ships an update every 5 months, Lowrance System Builder every 3 months. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TTSmanual | Lowrance System Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.8 (4 ratings)](https://appshunter.io/ios/app/lowrance-system-builder/id1016369323/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 17 MB | 159 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Piciorgros](https://appshunter.io/developer/301836687) | [Navico Norway AS](https://appshunter.io/developer/842162153) |

## What reviewers say

### TTSmanual

[App page](https://appshunter.io/ios/app/ttsmanual/id970031249)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lowrance System Builder

[App page](https://appshunter.io/ios/app/lowrance-system-builder/id1016369323)

This business tool helps marine electronics dealers create accurate sales quotes for Lowrance equipment. It generates system diagrams, calculates load, and identifies missing parts to ensure complete, working systems are proposed.

**Highlights:** Generate sales quotes with system diagrams, Ensure correct parts for working systems, Create Ethernet and NMEA 2000 connection drawings, Alerts for missing critical parts, Provides product information and specifications, Includes pricing and dimensioned drawings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TTSmanual free?

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

### Is Lowrance System Builder free?

Lowrance System Builder is free to download, with no in-app purchases.

### Do TTSmanual or Lowrance System Builder have ads?

Neither TTSmanual nor Lowrance System Builder shows ads.

### Which is updated more often, TTSmanual or Lowrance System Builder?

TTSmanual ships an update every 5 months, and Lowrance System Builder every 3 months. Most recently, TTSmanual was updated on October 4, 2026 and Lowrance System Builder on October 24, 2026.

---

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