AO Office vs SEMHydro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AO Office
This comprehensive office suite allows you to view, edit, import, and export a wide range of document types, including PDF, Word, Excel, and PowerPoint. It offers five powerful components: Writer, Calc, Impress, Draw, and Math, providing full OpenOffice functionality on your mobile device.
- View, edit, import, and export documents
- Supports PDF, Word, Excel, and PowerPoint
- Includes Writer, Calc, Impress, Draw, and Math components
- High reproducibility for Open Document Format
- Cloud storage integration (Dropbox, Google Drive, etc.)
- Modern encryption and Markdown support
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AO Office is the world's first porting of OpenOffice for iOS and it's a powerful and complete office suite for OpenOffice / LibreOffice documents. You can view, edit, import, and export PDF, Word, Excel & PowerPoint documents using full features of the OpenOffice in the PC version. AO Office has 5 components: Writer: a word processor you can use for anything from writing a quick letter to producing an entire book. Calc: a powerful spreadsheet with all the tools you need to calculate, analyze, and present your data in numerical reports or graphics. Impress: the fastest, most powerful way to create effective multimedia presentations. Draw: lets you produce everything from simple diagrams to dynamic 3D illustrations. Math: lets you create mathematical equations with a graphic user interface or by directly typing your formulas into the equation editor. * AO Office is a forked project from the Apache OpenOffice project. AO Office is not affiliated with the Apache OpenOffice and LibreOffice projects. ■ Features ■ - View / edit / import / export documents - High reproducibility for Open Document Format - Export and import documents as PDF - Formatting paragraphs - Create stylized text with special effects - Support for extensive file formats - Support for embedded object - Support for Dropbox / iCloud Drive / Google Drive / OneDrive / Box - Support for NAS / WebDAV (Paid version only) - Support for Audio and Video - Support for recovering the unsaved work - Support for modern encryption - Support for Markdown documents - Support for LaTeX math in Markdown documents ■ Supported File Formats ■ AO Office can open and save to: - Microsoft Word (DOC / DOT / RTF) - Microsoft Word 2007 (DOCX / DOTX / DOCM) - Microsoft Excel (XLS / XLT) - Microsoft Excel 2007 (XLSX / XLTX / XLSM) - Microsoft PowerPoint (PPT / POT) - Microsoft PowerPoint 2007 (PPTX / POTX / PPTM) - OpenDocument (ODT / ODS / ODP / ODG / ODF) - Portable Document Format (PDF) - OpenOffice.org1.0 / StarOffice6.0 (SXW / SXC / SXD / SXI / SXG / SXM) - Text (TXT / CSV / XML) - HyperText Markup Language (HTML) - Markdown (MD / MARKDOWN) - Adobe Photoshop (PSD) - Scalable Vector Graphics (SVG) - Windows Metafile (EMF / WMF) - Tagged Image File Format (TIFF) - Data Interchange Format (DIF) - SYLK (SLK) - Portable Anymap Format (PBM / PGM / PPM) - OS/2 Metafile (MET) - Sun Raster Image (RAS) - Mac Pict (PCT) - X PixMap (XPM) - StarView Metafile (SVM) AO Office can open: - WordPerfect Document (WPD) - AutoCAD (DXF) - T602 Document (602) - Computer Graphics Metafile (CGM) - Truevision Targa (TGA) - X Bitmap (XBM) - Zsoft Paintbrush (PCX) - Kodak Photo CD (PCD) AO Office can save to: - PlaceWare (PWP) - Macromedia Flash (SWF) - JPG / GIF / PNG / BMP ■ Gesture Assignments ■ - Hard Press or 2 Finger Tap = Context Menu - Pinch In & Out = Zoom In & Out - Drag = Scrolling - Drag with Hard Press or 2 Finger Tap = Drag & Drop ■ Limitations ■ - Not supported for macro ■ Contact Us ■ Email: support-ios@aooffice.app Twitter: @office700 The paid version includes the following functions. · Access to cloud storages · Printing - Export as PDF · Other useful functions
SEMHydro
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Monitoring centrali Sem Hydro
Screenshots
Verdict
The clearest difference is in-app purchases: SEMHydro at none against AO Office's 1. SEMHydro also leads on ads (none vs shown). AO Office's advantage is update cadence (every 5 weeks vs every 34 months) and device support (4 vs 1). On price there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. AO Office sells 1 one-off in-app purchase. SEMHydro asks for nothing beyond the download.
AO Office ships an update every 5 weeks, SEMHydro every 34 months. The most recent releases landed on November 13, 2026 and November 7, 2026 respectively.
| Parameter | AO Office | SEMHydro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (1.5K ratings) — better | — |
| Positive reviews | 39.6% of reviews | — |
| Number of ratings | 1.5K — better | — |
| Update frequency | Every 5 weeks — better | Every 34 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 237 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Akikazu Yoshikawa | iPlus Service S.r.l. |
In-app purchases
AO Office
- Professional Version$19.99
SEMHydro
No in-app purchases









