Comparison

Speedometer ∞ GPS Speed vs PDF Flow

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

Head to head
About

Speedometer ∞ GPS Speed

This app provides a simple and beautiful speedometer for iPhone and iPad. It allows users to easily track their speed with an extra-large digital display, functioning as a HUD.

Highlights
  • Large digital display
  • HUD mode
  • Speed tracking
  • iPhone and iPad compatible
  • Extra large font
Features
Read full description

A simple, beautiful speedometer with an extra-large readout — see your GPS speed at a glance, in km/h or mph. • Real-time GPS speed with a giant, glanceable number • Switch between km/h and mph with one tap • Light, Dark, and Auto color themes • Built-in signal quality indicator so you always know when GPS is solid • Works in portrait or landscape, on iPhone and iPad • Designed to stay out of your way — no clutter, no distraction Speedometer ∞ Pro unlocks: • HUD Mode — mirrored readout for windshield projection while you drive • No ads • All future Pro features You can keep using the free speedometer as long as you want. Great for driving, cycling, running, boating, and anywhere you want a larger, clearer read of your current speed than your device's default. Privacy Policy: https://apps.fawkeswei.com/speedometer/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PDF Flow

Features
Read full description

PDF Flow 是一款專為 iPhone 與 iPad 打造的全功能 PDF 工具。無論是處理工作文件、整理學習資料、還是快速簽署合約,一個 App 就能搞定。 主要功能 • 合併 PDF — 將多份 PDF 合併成一個檔案,可自由調整順序 • 分割 PDF — 依頁數或範圍拆分成多個檔案 • 壓縮 PDF — 降低檔案大小,方便傳送與儲存 • PDF 轉圖片 — 匯出成 JPG 或 PNG,逐頁儲存到照片圖庫 • 加頁碼 — 快速為文件編碼,支援多種位置與格式 • 加浮水印 — 文字浮水印保護你的文件 • 電子簽名 — 手寫簽名直接疊加到 PDF 上 • 重新排序 — 拖拉調整頁面順序 • 批次處理 — 一次處理多份檔案,節省時間 為什麼選 PDF Flow v 完全離線處理,檔案不上傳雲端,隱私零疑慮 v 無廣告、無干擾 v 支援 iPhone 與 iPad,介面簡潔直覺 v 支援從「檔案」、郵件、Safari 等 App 直接匯入 PDF v 原生 Swift 開發,快速流暢 適合誰 • 需要整理合約、報告的上班族 • 處理課程講義、作業的學生 • 快速簽署電子文件的自由工作者 • 任何希望在手機/平板上處理 PDF 的使用者 如有問題或功能建議,歡迎來信告訴我們,我們會持續更新。

Screenshots

Speedometer ∞ GPS Speed4 screens
PDF Flow4 screens

Verdict

The call

Speedometer ∞ GPS Speed and PDF Flow are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Speedometer ∞ GPS Speed sells 3 in-app purchases, starting at $1.99 per month and PDF Flow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Speedometer ∞ GPS Speed ships an update fortnightly, PDF Flow every 10 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Speedometer ∞ GPS Speed versus PDF Flow: the parameters behind the verdict, then further details
ParameterSpeedometer ∞ GPS SpeedPDF Flow
PriceFreeFree
Rating4.4 (1.3K ratings) — better—
Positive reviews51.1% of reviews—
Number of ratings1.3K — better—
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size17 MB1 MB
Age rating9+4+
DeveloperFawkes WeiChi-Feng Chien

Bugs and requests

Speedometer ∞ GPS Speed

Reported bugs

3 issues
  • Doesn't track speed at all
  • Displays incorrect speed readings
  • Doesn't work in certain conditions

Requested features

3 requests
  • Add tutorial or instructions
  • Improve speed tracking accuracy
  • Provide speed history or top speed tracking

PDF Flow

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Speedometer ∞ GPS Speed

Subscriptions1
  • Pro Monthly$1.991 Month
One-time2
  • Pro Lifetime$9.99
  • Pro Lifetime$14.99
1 purchases

PDF Flow

One-time1
  • PDF Flow$2.99

Questions

Is Speedometer ∞ GPS Speed free?
Speedometer ∞ GPS Speed is free to download, with in-app purchases available.
Is PDF Flow free?
PDF Flow is free to download, with in-app purchases available.
Do Speedometer ∞ GPS Speed or PDF Flow have ads?
Neither Speedometer ∞ GPS Speed nor PDF Flow shows ads.
Which is updated more often, Speedometer ∞ GPS Speed or PDF Flow?
Speedometer ∞ GPS Speed ships an update fortnightly, and PDF Flow every 10 days. Most recently, Speedometer ∞ GPS Speed was updated on November 6, 2026 and PDF Flow on October 31, 2026.

Other comparisons