RSSBud vs Unit Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RSSBud
Discover and subscribe to RSS feeds from websites and apps. This open-source tool helps you stay updated with content you love, offering automatic URL expansion and integration with popular RSS readers.
- Detect RSS and RSSHub feeds
- Discover relevant RSS feeds
- Optimized for mobile environments
- Share sheet extension
- Fast subscription to RSS readers
- Edit RSSHub feed parameters
- Automatic rule updates
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Discover and subscribe to RSS feeds in a flash with RSSBud, a completely free and open-source tool! Designed to uncover and subscribe to RSS feeds from various websites and apps, this tool can become your vital partner in staying up-to-date with all the content you love. Key Features: - Detect RSS feeds in web pages. - Detect RSSHub feeds appropriate for web pages (supports all rules of RSSHub Radar). - Discover other RSS feeds relevant to web pages (powered by RSSBud Rules). - Specifically optimized for mobile environments, expanding URLs automatically and adapting to mobile sub-domains. - Share sheet extension available for quick sharing of your favorite feeds. - Fast subscription to major RSS readers including Reeder, Fiery Feeds, and Ego Reader, as well as system default RSS reader. - Fast subscription to web clients of Tiny Tiny RSS, Miniflux, Fresh RSS, Feedly, Inoreader, Feedbin, The Old Reader, and Feeds Pub. - Edit parameters for RSSHub feeds to suit your needs. - Rules are automatically kept up to date. - Support for x-callback-url — use with the Shortcuts app to open a world of possibilities. With a user-friendly interface and an array of customizable options, RSSBud strives for a fluid and gratifying user experience every time. Enjoy its entire feature list at no cost at all, while being assured of its reliability and transparency, thanks to its open-source status.
Unit Converter
This utility app offers conversion for over 100 units across 18 categories, including length, mass, temperature, and digital storage. It supports a wide range of specific units within each category and provides a clean, ad-free interface for quick conversions.
- 18 unit categories
- Over 100 units supported
- Ad-free experience
- Supports multiple devices
- Pro version with free trial
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Support 18 categories of units, convert over 100+ units: - Angle: Degrees, Radians, Grad, Arcseconds, Arcminutes, Revolutions - Area: Mm², Square Kilometers, Square Meters, Square Centimeters, Mm², Μm², Nm², Square Inches, Square Feet, Square Yards, Square Miles, Acres, Ares, Hectares - Base: Binary, Octal, Decimal, Hexadecimal - Digital Storage: Bits, Bytes, Mib, Gib, Tib, Pib, Megabytes, Gigabytes, Terabytes, Petabytes - Electric Charge: C, Mah, Kah, Ah, Mah, Μah - Electric Potential Difference: Mv, Kv, Volts, Mv, Μv - Electric Resistance: Mω, Kω, Ohms, Mω, Μω - Energy: Kilojoules, Joules, Kilocalories, Calories, Kilowatt-Hours - Frequency: Thz, Gigahertz, Megahertz, Kilohertz, Hertz, Mhz, Μhz, Nhz - Fuel Efficiency: Liters Per 100 Kilometers, Miles Per Gallon, Miles Per Imp. Gallon - Length: Millimeters, Centimeters, Decimeters, Meters, Kilometers, Light Years, Inches, Feet, Yards, Miles - Mass: Kilograms, Grams, Dg, Cg, Milligrams, Micrograms, Ng, Pg, Ounces, Pounds, Stones, Metric Tons, Tons, Carats, Troy Ounces, Slug - Power: Tw, Gigawatts, Megawatts, Kilowatts, Watts, Milliwatts, Μw, Nw, Pw, Fw, Horsepower - Pressure: N/M², Gpa, Mpa, Kpa, Hectopascals, Inches Of Mercury, Bar, Millibars, Millimeters Of Mercury, Pounds-Force Per Square Inch - Speed: Kilometers Per Hour, Meters Per Second, Knots - Temperature: Degrees Celsius, Degrees Fahrenheit, Kelvins - Time (Duration): Milliseconds, Seconds, Minutes, Hours, Days, Weeks, Months, Years, Decade, Century - Volume: Megaliters, Kl, Liters, Deciliters, Centiliters, Milliliters, Cubic Kilometers, Cubic Meters, Dm³, Mm³, Cubic Inches, Cubic Feet, Cubic Miles Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Unit Converter at 100% against RSSBud's 50%. Unit Converter also leads on rating (4.9 vs 4.6) and update cadence (every 9 days vs every 6 weeks). RSSBud's advantage is in-app purchases (none vs 4). On price, ratings volume, ads 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
Both are free to download. Unit Converter sells 4 in-app purchases, starting at $0.99 per month. RSSBud asks for nothing beyond the download.
Unit Converter holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 28 and 18 respectively. Written reviews point the same way: 50% of RSSBud's written reviews are positive against 100% of Unit Converter's.
RSSBud ships an update every 6 weeks, Unit Converter every 9 days. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | RSSBud | Unit Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (28 ratings) | 4.9 (18 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 28 — better | 18 |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac, Vision Pro — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | 承宇 张 | ZIJIAN CHEN |
Customer experience
RSSBud
Unit Converter
In-app purchases
RSSBud
No in-app purchases
Unit Converter
- Pro Version (1 Month)14 Days trial$0.991 Month
- 1 cup of orange juice.$0.99
- 1 litre of orange juice.$2.99
- Pro Version (Lifetime)$3.99









