Comparison

unitCalc vs TuningForkPlus

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

Head to head
About

unitCalc

Features
Read full description

unitCalc 是一款適用於 iPhone 與 iPad 的計算機與台灣常用單位換算工具。 主要功能: • 四則運算、平方、立方、平方根、立方根及記憶功能 • 十萬至兆等大數快捷鍵 • 重量、長度、面積與貨幣換算 • 單位選項可橫向捲動,支援直向與橫向操作 • 匯率快取,可於離線時使用最後一次成功取得的資料 換算單位: • 重量:公克、公斤、台斤、台兩、英磅、盎司 • 長度:公尺、公分、台尺、台寸、英尺、英寸 • 面積:台坪、台畝、台分、台甲、平方公尺、公頃、平方英尺 • 貨幣:台幣、美元、日圓、歐元、英鎊、韓元、越南盾、港幣、人民幣 貨幣換算主要採用臺灣銀行對台幣現金賣出匯率;無現金匯率時使用即期賣出匯率。臺灣銀行服務無法使用時,App 會使用中央銀行官方資料計算參考匯率,並顯示來源與資料時間。 匯率資料僅供換算參考,不代表任何金融機構的實際交易報價;實際匯率應以交易時相關金融機構公告為準。unitCalc 為獨立開發工具,與臺灣銀行及中央銀行沒有隸屬、合作、代理或背書關係。

About

TuningForkPlus

Generate fundamental audio waveforms like sine, square, triangle, and sawtooth with precise control over frequency, amplitude, phase, and harmonics. Export high-quality audio for music production, sound design, and acoustic testing.

Highlights
  • Sine, square, triangle, sawtooth wave generation
  • Precise frequency control (A4 standard, custom Hz)
  • Amplitude, phase, and multi-harmonic overlay
  • Real-time complex sound synthesis
  • High-quality audio export
  • Music production and sound design tool
Features
Read full description

"Tuning Fork Plus" is a professional audio waveform synthesis tool that generates four fundamental wave types: sine, square, triangle, and sawtooth. It offers precise control over frequency (with A4 standard and custom Hertz values), amplitude, phase, and multi-harmonic overlay for real-time complex sound synthesis. With high-quality audio export capabilities, it is perfect for music production, sound design, auditory experiments, and acoustic testing, making it an essential tool for audio professionals and researchers. Subscription Information: • Subscription Name: Pro Membership • Options: • $0.99/month, auto-renewable • $5.99/year, auto-renewable • $9.99 lifetime access (one-time purchase, no renewal) Prices shown in USD for reference. Actual prices may vary by region. Subscription Terms: 1. Subscribing unlocks all premium features in the app. 2. Subscription options: Lifetime / Monthly / Yearly. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. 3. Your Apple ID account will be charged within 24 hours prior to the end of the current period and automatically renew the subscription. You can disable auto-renewal via iOS Settings: Settings > Apple ID > Subscriptions. 4. Current period cancellations are not allowed, but auto-renewal can be disabled at any time before the next billing cycle. The current subscription remains active until its expiry. 5. If a free trial is offered, it will convert to a paid subscription automatically unless canceled in advance. All purchases are handled by your Apple account, and refunds must be requested through Apple Support. The app cannot process refund requests directly. 6. Subscribing means you have read and agreed to the Privacy Policy and Terms of Use. Contact us: liyangong697@gmail.com Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/gly699/home/privacy_policy

Screenshots

unitCalc2 screens
TuningForkPlus4 screens

Verdict

The call

The clearest difference is in-app purchases: unitCalc at none against TuningForkPlus's 3. unitCalc also leads on update cadence (fortnightly vs every 3 months). On price, ads, device support and iOS requirement 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. TuningForkPlus sells 3 in-app purchases, starting at $0.99 per month. unitCalc asks for nothing beyond the download.

UpkeepUpdate frequency

unitCalc ships an update fortnightly, TuningForkPlus every 3 months. The most recent releases landed on September 10, 2026 and June 1, 2026 respectively.

Scorecard2 real differences · 7 level
unitCalc versus TuningForkPlus: the parameters behind the verdict, then further details
ParameterunitCalcTuningForkPlus
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size1 MB3 MB
Age rating4+4+
Developer培祐 黃丽俨 龚

In-app purchases

None

unitCalc

No in-app purchases

3 purchases

TuningForkPlus

Subscriptions2
  • Monthly$0.991 Month
  • Yearly3 Days trial$5.991 Year
One-time1
  • Lifetime$9.99

Questions

Is unitCalc free?
unitCalc is free to download, with no in-app purchases.
Is TuningForkPlus free?
TuningForkPlus is free to download, with in-app purchases available.
Do unitCalc or TuningForkPlus have ads?
Neither unitCalc nor TuningForkPlus shows ads.
Which is updated more often, unitCalc or TuningForkPlus?
unitCalc ships an update fortnightly, and TuningForkPlus every 3 months. Most recently, unitCalc was updated on September 10, 2026 and TuningForkPlus on June 1, 2026.

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