# SumSlide — PPTX Editor — Edit PPTX slides offline

> Edit PPTX slides offline (iPhone/iPad app by HEALTH INFORMATIC SECURITY SYSTEM, S.L..)

- Source: https://appshunter.io/ios/app/sumslide-pptx-editor/id6818031856 (this page in markdown: same URL + `.md`)
- Developer: [HEALTH INFORMATIC SECURITY SYSTEM, S.L.](https://appshunter.io/developer/1848342899)
- Category: Productivity, Business
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 78 MB
- Released: 2026-10-30
- Data updated: 2026-10-31

## What is SumSlide?

SumSlide opens, edits and saves .pptx presentations — the Microsoft Office file
format — on your iPhone and iPad.

Everything happens on the device. There is no account, no cloud and no network: the
presentation you open never leaves your phone.

• Open .pptx files and see them as they were made — shapes, colours, text and layouts.
• Tap a title or a text box and type — editing happens right on the slide.
• Add slides.
• Write speaker notes.
• Save back to .pptx, ready to open in any app that reads the format.

SumSlide is built on our own engine, written from scratch in Rust. It is not a viewer
wrapped around a web service — the file is read and written on the device itself.

SumSlide is part of the SumOffice family: SumDoc for documents and SumSheet for
spreadsheets.

## Is SumSlide safe?

Not enough ratings yet to assess SumSlide.

## Is SumSlide legit?

SumSlide — PPTX Editor appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for SumSlide is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 2026.4.1 — 2026-10-30

No release notes.

## More apps by HEALTH INFORMATIC SECURITY SYSTEM, S.L.

- [LayersAll](https://appshunter.io/ios/app/layersall/id6773373635)
- [SumSheet XLSX Editor](https://appshunter.io/ios/app/sumsheet-xlsx-editor/id6807049725)
- [SumDoc — DOCX Document Editor](https://appshunter.io/ios/app/sumdoc-docx-document-editor/id6807049845)

All apps by HEALTH INFORMATIC SECURITY SYSTEM, S.L.: https://appshunter.io/developer/1848342899

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*