Serving Sizer recipe converter vs Recipe Keeper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Serving Sizer recipe converter
Effortlessly adjust recipes for any number of servings without complex math. This tool also converts between metric and US measurements, making international recipes easy to follow. Perfect for home cooks, parents, and anyone hosting gatherings.
- Scale recipes by serving size
- Convert between Metric and US measures
- Adjust ingredient quantities easily
- Optimize scaled amounts for common units
- Quick convert buttons (double, triple, halve)
- Supports VoiceOver
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Easily convert recipes from one serving size to another without having to think about fraction math! ● Also convert between Metric & US measures **Featured by Apple in Holiday Cooking** Scale one ingredient at a time with this lighter version—Serving Sizer™ recipe converter or convert complete recipes all at once with Serving Sizer™ Recipe Manager, which has the added advantage of repeated scaling of recipes each time the guest list changes & is sold separately. Additional version available on iPad: Recipe Manager with Serving Sizer for iPad. ● Family of 5, but favorite recipe serves 4? Scale up to 5--less leftovers than just doubling the recipe. A lifesaver especially for parents on a budget. ● Holiday dinners are always around the corner--this time the guest list is for 14. Your favorite recipe serves 6. Let Serving Sizer do the math so you make enough food. ● Dinner for 1 tonight, but you don't want 3 days of leftovers. Convert a 4 serving recipe to a 1-person meal. ● Catering a big event for 100? Scale up an 8 serving recipe for a crowd—buy and make the right amount. ● Sure, anyone can double a recipe from 4 to 8 servings, but what if 10 people are coming & you don't want to run out of meat? Serving Sizer will tell how many lbs to buy for your dinner party. ● Got a cookbook from Europe, but recipes all in metric? Serving Sizer can help here too--all calculations displayed in both Metric & US units. Converting to & from Metric & US measures requires no additional steps. Just tap on "original" serving size & read amounts in both ml & cups. FEATURES • Scale by serving size--convert ingredients for more or less people • Easy entry—select fractional amounts & units using beautifully designed sliders for fractions, volumes, weights, & items • Enter numbers of items (like eggs or tomatoes) and let Serving Sizer determine fraction needed • Scaled amounts optimized for minimum number of steps and common units, such as 1 cup & 1 Tbsp, instead of 17 tablespoons. • Double, triple, & halve buttons to convert quickly to common recipe conversions • New measurements displayed in both Metric & US measures • Supports VoiceOver APPLICATIONS + Holiday feasts where recipes are increased to serve more people + Dinner parties for non-standard number of people + Meals for one or two from larger serving sizes + Catering for crowds + Convert European based recipes into a US format or US to Metric + Great for parents cooking odd-sized servings TESTIMONIALS "TERRIFIC tool for moms"-TheiPhoneMom.com "Converts the mysterious American cup measurements in my slow cooker recipe book to something useful."-PC in the UK "I use it at holidays to try out my favorite recipes on my big family. Having it [mobile] allows me to use Serving Sizer easily in my kitchen or at my parents' house"-RP "Most of my favorite cookbooks are for 4-8 servings. Serving Sizer provides a simple way to reduce recipes for the two of us. Thanks so much for this simple tool!"-KR "Do a lot of cooking for different sized groups of people?...Not only can you quickly reduce a four serving recipe to dinner for two, but also can use recipes from other countries easily & accurately...Ideal for caterers who want to expand a smaller recipe to serving sizes for large crowds...Anyone who cooks will enjoy the convenience..."-Handheld Computing ----- Also available from Creative Algorithms: - Trip Boss™ travel manager apps, available in 4 versions. Manage travel Expenses, Budgets, Itinerary, or keep a Journal - Date Wheel™ date calculator - calculate the time between two dates in months, weeks, days, and business days. Save for future reference - Serving Sizer™ Recipe Manager - convert complete recipes all at once & save for later, organize your recipes - Tip Boss tip calculator
Recipe Keeper
Organize all your recipes in one place, import from websites, scan handwritten notes, and plan your meals. Automatically generate shopping lists and share your culinary creations with others.
- Recipe import from websites
- Scan recipes with OCR
- Meal planning calendar
- Automatic shopping list generation
- Recipe sharing
- Cookbook creation
- Hands-free cooking with Alexa
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Recipe Keeper is the easy to use, all-in-one recipe organizer, shopping list and meal planner available across all of your devices. ADD RECIPES QUICKLY AND EASILY Enter your recipes with as much or as little information as you like. Copy and paste recipes from your existing documents or apps. Categorize your recipes by course and category. Add photos, rate your recipes and flag your favorites. IMPORT RECIPES FROM WEBSITES Search for recipes on the web and add them straight to your collection. Hundreds of popular recipe websites supported. Customize imported recipes to suit your needs. SCAN FROM COOKBOOKS, MAGAZINES AND HANDWRITTEN RECIPES Scan recipes using your phone's camera or from your existing photos and PDF files. OCR technology automatically converts images to text. Keep all your favorite family recipes safe forever. FIND ANY RECIPE INSTANTLY Quickly lookup your recipes by name, ingredient or directions or simply browse your recipes by course, category and rating. Got leftovers in the fridge? Search for a recipe to use them up. Cook more of your favorite meals and rediscover those long-forgotten recipes to make mealtimes interesting again. SHARE RECIPES WITH FRIENDS AND FAMILY Share your recipes by email and to your favorite social networks. Create a shared family recipe collection. Add recipes from other Recipe Keeper users with a single tap. CREATE BEAUTIFUL COOKBOOKS Create cookbooks from your recipes for printing or sharing as a PDF with cover page, table of contents, custom layouts and more. UNEXPECTED GUESTS? Adjust a recipe serving size up or down and let Recipe Keeper automatically recalculate your ingredients for you. PLAN AHEAD AND STAY IN CONTROL Integrated weekly and monthly meal planner allows you to plan your meals in advance. Add all your meals to your shopping list in one step. Recipe Keeper can even create a random meal plan for you based on your hints and suggestions. Get rid of that "what should I cook tonight?" feeling. MAKE SHOPPING SIMPLER Fully featured shopping list that automatically groups your items by aisle. Save money by only buying what you need. No more trips back to the store for that one thing you forgot. AVAILABLE ACROSS ALL OF YOUR DEVICES Share your recipes, shopping lists and meal planner across all your iPhones, iPads, Macs, PCs and other mobile and tablet devices (separate purchase required for other platforms). "ALEXA, ASK RECIPE KEEPER FOR COOKIE RECIPES." Search your recipes, cook hands-free with step-by-step instructions and add items to your shopping list using the Recipe Keeper skill for Amazon Alexa, (English language only). TRANSFER YOUR EXISTING RECIPES Transfer your recipes from other apps such as Living Cookbook, MasterCook, MacGourmet, BigOven, Cook'n, My Cookbook, My Recipe Book, Paprika Recipe Manager, Pepperplate, OrganizEat, Recipe Box and many more. AND MORE! • Choose from 25 different color schemes, light & dark modes • Format recipes using bold and italics • Customizable recipe collections, courses and categories • Add nutrition information and search for recipes by nutritional amounts • Check off ingredients while cooking, highlight the current direction • Adjustable text size when viewing recipes - great for reading recipes across the kitchen • Convert recipes between US/Imperial and Metric units • Link related recipes together • Add links to online videos • Pin your favorite recipes to the home screen for quick access • Works offline - take your recipes with you wherever you go • Bulk update multiple recipes at once • Screen lock disabled while viewing recipes - no more messy fingers on screen trying to wake your device • Available in 15 languages GREAT SUPPORT We love hearing from you! If you need any help, have a question, or want to suggest a new feature, please email us at support@tudorspan.com Cook more. Eat healthier. Shop smarter. Try Recipe Keeper free today!
Screenshots
Verdict
The clearest difference is price: Recipe Keeper at Free against Serving Sizer recipe converter's $0.99. Recipe Keeper also leads on rating (4.8 vs 4.2) and ratings volume (31K vs 28). Serving Sizer recipe converter's advantage is in-app purchases (none vs 1) and iOS requirement (7.0 vs 12.2). On review sentiment, update cadence, ads and chart position 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
Recipe Keeper is free to download; Serving Sizer recipe converter costs $0.99 up front. Recipe Keeper sells 1 one-off in-app purchase. Serving Sizer recipe converter asks for nothing beyond the download.
Recipe Keeper holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Recipe Keeper has 31K ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 71% of Serving Sizer recipe converter's written reviews are positive against 78% of Recipe Keeper's.
Serving Sizer recipe converter ships an update monthly, Recipe Keeper every 3 weeks. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | Serving Sizer recipe converter | Recipe Keeper |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.2 (28 ratings) | 4.8 (31K ratings) — better |
| Positive reviews | 70.7% of reviews | 77.8% of reviews — better |
| Number of ratings | 28 | 31K — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #84 | #34 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 12.2 |
| Further details — not scored | ||
| Size | 28 MB | 167 MB |
| Age rating | 4+ | 17+ |
| Developer | Creative Algorithms | Tudorspan Limited |
Customer experience
Serving Sizer recipe converter
Recipe Keeper
Bugs and requests
Serving Sizer recipe converter
Not enough reviews yet to summarise bugs or requests.
Recipe Keeper
Reported bugs
2 issues- Occasional crashes or freezes
- Issues with recipe import accuracy, especially for handwritten recipes
Requested features
5 requests- Import recipes from Instagram and other social media
- Pantry inventory management
- Ability to add notes and instructions to meal plans
- Day view option in meal planner
- Automatic ingredient adjustments for recipe scaling
In-app purchases
Serving Sizer recipe converter
No in-app purchases
Recipe Keeper
- Recipe Keeper Pro Upgrade$19.99
Questions
Is Serving Sizer recipe converter free?
Is Recipe Keeper free?
Which has better reviews, Serving Sizer recipe converter or Recipe Keeper?
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