Comparison

NMR Solvent Peaks vs Sticky Widgets

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

Head to head
About

NMR Solvent Peaks

This utility helps organic chemists quickly identify potential impurities by searching a database of NMR data. Users can input solvent, peak multiplicity, and location to find candidate impurities. It supports both proton and carbon data searches.

Highlights
  • Search for impurities by mode, solvent, multiplicity, and ppm
  • View alphabetical list of all impurities
  • Adjust user interface handedness
  • Select color themes
  • Supports proton and carbon NMR data
Read full description

NMR Solvent Peaks is a conveniently-searchable version of the ungainly table of NMR data most organic chemists keep a copy of nearby. Instead of searching through the table for a peak near your unidentified peak, just enter your solvent and the peak's multiplicity and location and you'll have a short list of candidate impurities. NMR Solvent Peaks has support for searching both proton and carbon data, and references the widely-distributed 2010 Organometallics paper by Gregory Fulmer and coworkers and the 2016 OPRD paper by Gregory Whiteker and coworkers. Feature Highlights: - search for impurities based upon mode (proton/carbon), deuterated solvent, multiplicity, and ppm - select "show all" for ppm to see an alphabetical list of all impurities in the app's database - pick a color theme and adjust the user interface handedness

About

Sticky Widgets

Easily add customizable sticky notes to your home and lock screens. Sync notes across devices with iCloud and integrate with Siri and Shortcuts. Unlock advanced features like custom colors and reminders with an optional upgrade.

Highlights
  • Home screen widgets
  • Lock screen pinning
  • iCloud sync
  • Siri and Shortcuts integration
  • Customizable appearance
  • Multiple widget sizes
Features
Read full description

"It's perfect, honestly." - Myke Hurley, Connected "What makes Sticky Widgets great is the simplicity of the experience." - Ryan Christoffel, MacStories "This is a great concept." - Dave Mark, The Loop Welcome to Sticky Widgets, the absolute easiest way to put a sticky note on your home screen and edit it quickly. Add as many Sticky Widgets as you'd like, in every widget size. It's simple! It works on iPad! You can even pin notes to your Lock Screen with a premium subscription so they're visible even when your phone is locked! 1. Add a Sticky Widget to your home screen 2. Tap on the widget to edit it 3. That's about it! But that's not all. Once you have a widget in place, you can customize it: change color, background, font, alignment, size, even rotation! And your widgets now sync to your iCloud account, meaning you can put a note on multiple devices logged into the same Apple ID and they'll stay in sync. Sticky Widgets supports deep system integration with Siri, Shortcuts, the Dynamic Island, and more so there are even more ways to view and update your notes and lists. Sticky Widgets is free to download and use. You get unlimited widgets, three classic background colors, three fonts, iCloud sync, Siri and Shortcuts integration, and full control over alignment, size, and rotation: all without paying a thing. An optional upgrade unlocks everything else: the full color picker with any color you want, gradients and mesh gradients, hundreds of additional fonts, custom text colors, Lock Screen pinning, separate styling for light and dark mode, saved presets, the ability to restore archived notes, scheduled reminders, and no ads. Premium features can be accessed with a monthly, quarterly, or annual subscription, or with a one-time purchase. The Sticky Widgets Terms of Use and Privacy Policy can be found at https://www.tylerhillsman.com/privacy-sw/. The Apple EULA can be found at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

NMR Solvent Peaks3 screens
Sticky Widgets4 screens

Verdict

The call

The clearest difference is review sentiment: NMR Solvent Peaks at 100% against Sticky Widgets's 40%. NMR Solvent Peaks also leads on in-app purchases (none vs 9) and rating (5.0 vs 4.6). Sticky Widgets's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (30K vs 11). On price, ads and device support 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. Sticky Widgets sells 9 in-app purchases, starting at $1.49 per month. NMR Solvent Peaks asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

NMR Solvent Peaks holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Sticky Widgets has 30K ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 100% of NMR Solvent Peaks's written reviews are positive against 40% of Sticky Widgets's.

UpkeepUpdate frequency

NMR Solvent Peaks ships an update every 3 months, Sticky Widgets every 2 weeks. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

Scorecard7 real differences · 3 level
NMR Solvent Peaks versus Sticky Widgets: the parameters behind the verdict, then further details
ParameterNMR Solvent PeaksSticky Widgets
PriceFreeFree
Rating5.0 (11 ratings) — better4.6 (30K ratings)
Positive reviews100.0% of reviews — better40.2% of reviews
Number of ratings1130K — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, Vision Pro
Requires iOS15.5 — better17.0
Further details — not scored
Size1 MB101 MB
Age rating4+4+
DeveloperLucas Moore1881 Digital, LLC

Customer experience

NMR Solvent Peaks

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Sticky Widgets

All ratings29,692 ratings
Positive88.8%
Neutral4.0%
Negative7.3%
Written reviews938 reviews
Positive40.2%
Neutral11.0%
Negative48.8%

Bugs and requests

NMR Solvent Peaks

Not enough reviews yet to summarise bugs or requests.

Sticky Widgets

Reported bugs

4 issues
  • Notes randomly disappearing
  • Editing issues where changes don't save
  • Widgets not updating properly
  • Crashes and freezes after recent updates

Requested features

5 requests
  • Add checklist functionality
  • Improve syncing across devices
  • Allow rearranging of notes
  • Provide better note organization options
  • Add support for more languages

In-app purchases

None

NMR Solvent Peaks

No in-app purchases

9 purchases

Sticky Widgets

Subscriptions6
  • Upgrade - Monthly7 Days trial$1.491 Month
  • Upgrade - Monthly7 Days trial$2.491 Month
  • Upgrade - Quarterly7 Days trial$2.993 Months
Show 3 more
  • Upgrade - Quarterly7 Days trial$4.993 Months
  • Upgrade - Annual7 Days trial$8.991 Year
  • Upgrade - Annual7 Days trial$14.991 Year
One-time3
  • Classic$2.99
  • Upgrade - One-Time Option$19.99
  • Upgrade - One-Time Option$34.99

Questions

Is NMR Solvent Peaks free?
NMR Solvent Peaks is free to download, with no in-app purchases.
Is Sticky Widgets free?
Sticky Widgets is free to download, with in-app purchases available.
Which has better reviews, NMR Solvent Peaks or Sticky Widgets?
NMR Solvent Peaks is rated higher. NMR Solvent Peaks averages 5.0 out of 5 from 11 ratings, while Sticky Widgets averages 4.6 from 30K ratings.
Do NMR Solvent Peaks or Sticky Widgets have ads?
Neither NMR Solvent Peaks nor Sticky Widgets shows ads.
Which is updated more often, NMR Solvent Peaks or Sticky Widgets?
NMR Solvent Peaks ships an update every 3 months, and Sticky Widgets every 2 weeks. Most recently, NMR Solvent Peaks was updated on November 3, 2026 and Sticky Widgets on November 10, 2026.

Other comparisons