Stamp Duty vs sked
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stamp Duty
This app helps users calculate stamp duty for property purchases in Singapore. It covers residential and non-residential properties, company shares, and allows verification of stamp duty certificates and checking outstanding amounts.
- Calculate residential stamp duty
- Calculate non-residential stamp duty
- Calculate company shares stamp duty
- Verify stamp duty certificate
- Check outstanding stamp duty amount
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Features: - Calculate Residential Stamp Duty - Calculate Non-Residential Stamp Duty - Calculate Company Shares - Verify Stamp Duty Certificate - Check Outstanding Amount Buyer's Stamp Duty (BSD) is tax paid on documents signed when you buy or acquire property located in Singapore. Liable buyers are required to pay ABSD on top of the existing Buyer’s Stamp Duty (BSD). ABSD and BSD are computed on the purchase price as stated in the dutiable document or the market value of the property (whichever is the higher amount).
sked
Easily share class schedules with student groups and see when blockmates are available. Quickly join or create groups, add class details, and check real-time availability without constant chat notifications.
- Join or start groups
- Add class details
- See real-time availability
- Configurable visibility
- Optional Pro subscription
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sked helps student groups share class schedules and see when blockmates are free. Join a group with a code from your GC, add your weekly class blocks, and check who's free right now — without pinging the chat. • Join or start a group in seconds • Add subjects, rooms, and class times • See who's free right now in your group • Choose full detail or busy/free visibility per group • Optional sked Pro (annual) — more groups and Pro group papers, with a 7-day trial Built for college blocks, thesis groups, orgs, and friends. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Stamp Duty at none against sked's 1. Stamp Duty also leads on device support (3 vs 1) and iOS requirement (12 vs 17.0). sked's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price 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. sked sells 1 in-app purchase, starting at $4.99 per year. Stamp Duty asks for nothing beyond the download.
Stamp Duty ships an update every 2 months, sked every 3 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | Stamp Duty | sked |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12 — better | 17.0 |
| Further details — not scored | ||
| Size | 50 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Novanet Solutions | MARK RAPHAEL STO. DOMINGO |
Customer experience
Stamp Duty
sked
In-app purchases
Stamp Duty
No in-app purchases
sked
- sked Pro7 Days trial$4.991 Year









