Comparison

Ammann ADS vs ZapPDF

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

Head to head
About

Ammann ADS

Read full description

Ammann Documentation System (ADS) enables documentation of Job-site compaction results measured by ACEforce or ACEpro systems installed on Ammann Heavy compaction machines, combined with GPS position for precise localization.

About

ZapPDF

Features
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ZapPDF is the ultimate privacy-first PDF utility. Whether you are dealing with sensitive financial documents, legal forms, or heavy study materials, ZapPDF gives you the power to manage them instantly—without ever uploading your private files to a random cloud server. 100% OFFLINE & PRIVATE All processing happens locally on your device. Zero cloud uploads. Zero data harvesting. Total peace of mind. POWERFUL FEATURES • Merge: Combine multiple files into one seamless document. • Split: Extract specific page ranges or break a large file into individual pages. • Edit Pages: Drag to reorder, rotate, or delete pages in seconds. • Document Scanner: Scan paper documents or import photos directly into a crisp, secure PDF. • Flatten: Merge annotations and form fields directly into the page content to prevent further editing. • Seamless Sharing: Open files directly from the Files app, Mail, or other apps using the iOS Share Sheet. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Ammann ADS4 screens
ZapPDF3 screens

Verdict

The call

The clearest difference is in-app purchases: Ammann ADS at none against ZapPDF's 2. Ammann ADS also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support 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. ZapPDF sells 2 in-app purchases, starting at $8.99 per year. Ammann ADS asks for nothing beyond the download.

UpkeepUpdate frequency

Ammann ADS ships an update every 4 months, ZapPDF every 2 months. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 4 level
Ammann ADS versus ZapPDF: the parameters behind the verdict, then further details
ParameterAmmann ADSZapPDF
PriceFreeFree
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.1 — better17.0
Further details — not scored
Size50 MB16 MB
Age rating4+4+
DeveloperAmmann Switzerland LtdYasar Berker Gungor

In-app purchases

None

Ammann ADS

No in-app purchases

2 purchases

ZapPDF

Subscriptions1
  • ZapPDF Pro Annual$8.991 Year
One-time1
  • Lifetime Pro Unlock$14.99

Questions

Is Ammann ADS free?
Ammann ADS is free to download, with no in-app purchases.
Is ZapPDF free?
ZapPDF is free to download, with in-app purchases available.
Do Ammann ADS or ZapPDF have ads?
Neither Ammann ADS nor ZapPDF shows ads.
Which is updated more often, Ammann ADS or ZapPDF?
Ammann ADS ships an update every 4 months, and ZapPDF every 2 months. Most recently, Ammann ADS was updated on November 7, 2026 and ZapPDF on November 9, 2026.

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