Bond Yield Calculator vs ZapPDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bond Yield Calculator
This utility app calculates and visualizes the yield-to-maturity for bonds. It offers a fast and accurate calculation algorithm with strong input validation and user-friendly controls.
- Yield-to-maturity calculation
- Visualization of bond yield
- Fast and accurate algorithm
- Robust input validation
- Convenient controls
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Calculate and visualise bond yield to maturity. Bond Yield Calculator features a fast & accurate yield algorithm, robust input validation, and convenient controls.
ZapPDF
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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
Verdict
The clearest difference is price: ZapPDF at Free against Bond Yield Calculator's $0.99. ZapPDF also leads on iOS requirement (17.0 vs 26.0). Bond Yield Calculator's advantage is in-app purchases (none vs 2) and device support (5 vs 3). On update cadence and ads 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
ZapPDF is free to download; Bond Yield Calculator costs $0.99 up front. ZapPDF sells 2 in-app purchases, starting at $8.99 per year. Bond Yield Calculator asks for nothing beyond the download.
Bond Yield Calculator ships an update every 3 months, ZapPDF every 2 months. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.
| Parameter | Bond Yield Calculator | ZapPDF |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac, Apple Watch, Vision Pro — better | iPhone, iPad, Mac |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Amatino | Yasar Berker Gungor |
In-app purchases
Bond Yield Calculator
No in-app purchases
ZapPDF
- ZapPDF Pro Annual$8.991 Year
- Lifetime Pro Unlock$14.99
Questions
Is Bond Yield Calculator free?
Is ZapPDF free?
Do Bond Yield Calculator or ZapPDF have ads?
Which is updated more often, Bond Yield Calculator or ZapPDF?
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