Comparison

AO Office vs SEMHydro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

SEMHydro

Features
Read full description

Monitoring centrali Sem Hydro

Screenshots

AO Office4 screens
SEMHydro4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AO Office sells 1 one-off in-app purchase. SEMHydro asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
AO Office versus SEMHydro: the parameters behind the verdict, then further details
ParameterAO OfficeSEMHydro
PriceFreeFree
Rating4.3 (1.5K ratings) — better—
Positive reviews39.6% of reviews—
Number of ratings1.5K — better—
Update frequencyEvery 5 weeks — betterEvery 34 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size237 MB11 MB
Age rating4+4+
DeveloperAkikazu YoshikawaiPlus Service S.r.l.

In-app purchases

1 purchases

AO Office

One-time1
  • Professional Version$19.99
None

SEMHydro

No in-app purchases

Questions

Is AO Office free?
AO Office is free to download, with in-app purchases available.
Is SEMHydro free?
SEMHydro is free to download, with no in-app purchases.
Do AO Office or SEMHydro have ads?
AO Office shows ads; SEMHydro does not.
Which is updated more often, AO Office or SEMHydro?
AO Office ships an update every 5 weeks, and SEMHydro every 34 months. Most recently, AO Office was updated on November 13, 2026 and SEMHydro on November 7, 2026.

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