Comparison

PDF Signature Assistant vs CellArc

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

Head to head
About

PDF Signature Assistant

Features
Read full description

PDF Signature Assistant - A lightweight and precise PDF e-signature tool. [Core Features] Β· Precise 4-Arrow Positioning Fine-tune up, down, left, and right. Pixel-perfect movement to align your signature exactly on the signing line. Β· Pinch to Resize Freely scale your signature size with two fingers to perfectly fit the document layout. Β· Adjustable Stroke Width Customize pen thickness to reproduce a realistic writing feel. Β· Custom Signature Color Choose your signature color to meet different needs, such as standard black or red for approvals. Β· Undo Support Made a mistake while writing or moving? One tap to undo, zero cost for errors. Say goodbye to repetitive adjustments and complete professional signing quickly. Download now! β€” Privacy Policy please visit: https://docs.qq.com/doc/DREt1SXJkbG9JYUFT * **Terms of use (EULA): * https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr * **Terms of apple please visit: * https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CellArc

Features
Read full description

CellArc turns your iPhone's battery into something you can understand and plan around β€” on device, with no account, no ads and no subscription. NEW IN 4.0 β€’ Battery Health Log β€” iOS shows Maximum Capacity only as today's number. Log it from Settings > Battery > Battery Health (plus the cycle count on iPhone 15 and later) and CellArc fits a trend from your own readings: loss per year, cycles per month, loss per 100 cycles and a projected date for reaching 80%. β€’ Siri & Shortcuts β€” "Battery Outlook" summarizes your level, today's recorded discharge and latest Maximum Capacity. "Log Battery Level" records a sample even while CellArc is closed; add it to a Shortcuts automation such as "When iPhone is connected to power". "Log Maximum Capacity" adds a health reading by voice. β€’ Full backup & restore β€” one JSON file with your samples, charging sessions, daily rollups, health log and routine trials. Restoring only adds missing records; it never deletes or overwrites. β€’ Redesigned navigation β€” the system tab bar with five clear destinations, and every Power Lab tool opens with a real back button. Higher-contrast text, Dynamic Type support and a calmer iPad layout. WHAT CELLARC DOES β€’ Dashboard with live level, Battery Action Plan and a 7-day longevity trend β€’ Live Forecast: time to full and time to empty from recent movement β€’ Charging sessions with time to 80%, peak thermal state and charge-speed trend β€’ Longevity score, 20–80% band coach, drain analysis, usage rhythm and heat exposure β€’ Scenario Studio and Routine Trials to test a changed habit against your own data β€’ Trip Planner with power-bank sizing, Best Time to Charge, Storage Mode reminders and Lifetime Energy β€’ Offline Charger Guide and a 23-topic Battery Field Guide with Apple sources β€’ CSV, text and PDF reports HONEST ABOUT iOS LIMITS iOS does not let apps read Maximum Capacity, cycle count, temperature or per-app power. CellArc samples the public battery level and thermal state while it is open (or when your shortcut runs), labels estimates as estimates, and uses the readings you enter for health trends. It is not a diagnostic or service tool. Everything included β€” one purchase, no subscription. iPhone and iPad.

Screenshots

PDF Signature Assistant4 screens
CellArc4 screens

Verdict

The call

The clearest difference is price: PDF Signature Assistant at $0.99 against CellArc's $1.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

PDF Signature Assistant costs $0.99 and CellArc $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Β· 5 level
PDF Signature Assistant versus CellArc: the parameters behind the verdict, then further details
ParameterPDF Signature AssistantCellArc
Price$0.99 β€” better$1.99
Update frequencyβ€”Every 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 β€” better17.0
Further details β€” not scored
Size6 MB7 MB
Age rating4+4+
Developer乐η₯₯ 胑Robert Corbin

In-app purchases

None

PDF Signature Assistant

No in-app purchases

None

CellArc

No in-app purchases

Questions

Is PDF Signature Assistant free?
PDF Signature Assistant costs $0.99, with no in-app purchases.
Is CellArc free?
CellArc costs $1.99, with no in-app purchases.
Do PDF Signature Assistant or CellArc have ads?
Neither PDF Signature Assistant nor CellArc shows ads.

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