ShiftPower vs PDFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShiftPower
Enhance your driving experience with customizable acceleration modes for sportier and safer performance. Control your vehicle's safety with dedicated Lock and Valet modes, offering over 300 acceleration response maps for a personalized feel.
- Four customizable driving modes
- Lock and Valet safety modes
- Over 300 acceleration response maps
- Sportier and safer overtaking
- Plug-and-Play installation
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Eliminate acceleration delay with four customizable quick access driving modes (Dynamic, Sport, Super Sport and Race). Control your car's safety with Lock and Valet modes. Enjoy the pleasure of driving in a sportier and safer way when overtaking. Over 300 acceleration response maps. Easy installation. Plug-and-Play connections. Here begins the experience of driving a new car, yours.
PDFlow
This app offers a suite of 9 tools to manage PDF files directly on your device. It allows you to merge, split, compress, reorder, remove, rotate, unlock, protect, and convert PDFs to images without needing an account or internet connection.
- Merge multiple PDFs
- Split PDFs into ranges or specific pages
- Compress PDF file size
- Reorder pages via thumbnail grid
- Remove pages individually or in bulk
- Rotate pages within the file
- Unlock password-protected PDFs
- Protect PDFs with AES encryption
- Convert PDF pages to images (JPG/PNG)
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PDFlow gives your iPhone and iPad 9 PDF tools in one clean app. Merge, split, compress, reorder, remove pages, rotate, unlock, protect, and convert to images — every file is processed on your device, and no account is required to use the tools. BUY ONCE. OWN IT FOREVER. PDFlow Pro is a one-time purchase of $19.99. One payment, full access, no renewal. Prefer to spend less up front? One month costs $2.99 and does not auto-renew. Try every tool first with the free trial. WHAT PDFLOW DOES MERGE — Combine several PDFs into one document. Import from Files, Google Drive, email attachments, or any app. Drag to reorder before merging. SPLIT — Pull out a page range or a set of specific pages from any PDF. Visual thumbnail grid, several output files in one session. COMPRESS — Reduce PDF file size at three levels: Small, Medium, High. The estimated output size is shown before you export, so you know what you are getting. REORDER — A full thumbnail grid. Drag any page to any position and fix a scrambled document in seconds. REMOVE PAGES — Tap to select one page or many, then delete them all in a single action. ROTATE — Rotate pages into the file itself, not just the view, so the fix survives when you send the PDF on. Right, left, or 180°. UNLOCK — Remove password protection from a PDF you own. Nothing is uploaded, nothing leaves your device. PROTECT — Add AES password encryption to any PDF, including files that came from iCloud Drive or Google Drive. TO IMAGES — Convert every page of a PDF to JPG or PNG. All pages at once. Save to Photos or Files, or export the set as a ZIP. PRIVATE BY DESIGN Every tool runs entirely on your iPhone or iPad. Your files are never uploaded to a server, and the tools keep working with no connection at all. Google Drive sign-in exists only as an optional import source — one way in among several, never a requirement. CLEAN INTERFACE One tool per screen. No buried menus, no upsell in the middle of a task, no ads. Open the app, do the job, done. WORKS WITH · Files (iCloud Drive, On My iPhone) · Google Drive · Email attachments · Any app that supports the iOS Share Sheet PRICING · Free trial — try all 9 tools · PDFlow One Month: $2.99 — 30 days, no auto-renewal · PDFlow Lifetime: $19.99 — buy once, own forever Payment is charged to your Apple ID at confirmation of purchase.
Screenshots
Verdict
The clearest difference is review sentiment: PDFlow at 100% against ShiftPower's 61%. PDFlow also leads on ads (none vs shown). ShiftPower's advantage is in-app purchases (none vs 2) and ratings volume (348 vs 2). On price and update cadence 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. PDFlow sells 2 one-off in-app purchases. ShiftPower asks for nothing beyond the download.
ShiftPower holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: ShiftPower has 348 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 61% of ShiftPower's written reviews are positive against 100% of PDFlow's, so the app with the better star average is not the one people write more warmly about.
ShiftPower ships an update every 2 weeks, PDFlow weekly. Both last shipped on October 15, 2026.
| Parameter | ShiftPower | PDFlow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (348 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 61.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 348 — better | 2 |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 112 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Faaftech Tecnologia Ltda | Trivialware |
Customer experience
ShiftPower
PDFlow
In-app purchases
ShiftPower
No in-app purchases
PDFlow
- PDFlow One Month$2.99
- PDFlow Lifetime$19.99









