Comparison

PlanSnap vs Lockn

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

Head to head
About

PlanSnap

Easily add photos to PDF plans by pinning them to specific locations. Organize construction pictures and share PDF sets with embedded photos with team members. Ideal for architects, engineers, and contractors to streamline project communication.

Highlights
  • Pin photos to specific locations on PDF plans
  • Organize construction pictures by project
  • Share PDF plans with embedded photos
  • Upload and add photos from phone gallery
  • Offline photo uploading when reconnected
  • Download photo sets for backup
Features
Read full description

PlanSnap is an easy way to add photos to PDF plans. The app organizes construction pictures by pinning them to specific locations on a plan. Then you can download or share the set of PDF + photos with other team members. Created by structural design firm DLK Engineering LLC, PlanSnap is designed to help contractors, engineers, and architects share project photos and minimize the need for on-site meetings. For architects and engineers, upload your PDF set and share the link with a contractor. When the someone adds pictures to the PDF, anyone with the link can view, download, or share them with others. Note that you can also add photos of your hand sketches, screenshots, etc. For contractors, upload a new PDF by choosing a file from you phone (or open a previous PlanSnap link), and then start adding photos by long-tapping any spot on the PDF.  Then a link can be shared to give other team members access to the PDF with the photos. If there is no reception at the jobsite, leave PlanSnap open so it can upload your photos when you are reconnected. Or, you can just add photos to the PDF from your phone gallery at anytime. Tip for locating photos: For maximum clarity, pin the photo to the location on the PDF that represents *where you were standing* when you took it, rather than pinning it to the element you photographed. Tip for sharing links: Save your PlanSnap links (in a shared Note, for instance) so you find them later as needed. And then download your photos to keep a backup copy. NOTE: Photos are not stored by PlanSnap forever, so make sure to download and keep your photo sets for your own records!

About

Lockn

This app helps students focus by disabling distracting applications during study sessions. It integrates with campus tap stations to initiate and end focused work periods. Users can track their study history and engage with classmates through friend and leaderboard features.

Highlights
  • Disable distracting apps
  • Integrates with campus tap stations
  • Track study session history
  • Friends and leaderboard features
  • Promotes phone-free study
Features
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**Lockn integrates with installed tap stations in designated areas across libraries and other study spots. Please ensure that your school has partnered with Lockn before downloading the app.** As you enter the library, tap your phone to a Lockn tap station to disable distracting apps and begin a lock-in session. Use the friends and leaderboard features to interact with your classmates and see whose ahead! Log your sessions in history. When you are done studying, tap your phone on your way out. Lockn prevents phone distractions during study sessions by creating distance between you and your phone.

Screenshots

PlanSnap4 screens
Lockn3 screens

Verdict

The call

PlanSnap and Lockn both sit at 5.0 stars, but that hides the real split: 100% of Lockn's written reviews are positive against 50% of PlanSnap's. PlanSnap's advantage is update cadence (weekly vs every 2 months) and iOS requirement (13.0 vs 18.5). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for PlanSnap against 5.0 for Lockn. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 50% of PlanSnap's written reviews are positive against 100% of Lockn's.

UpkeepUpdate frequency

PlanSnap ships an update weekly, Lockn every 2 months. The most recent releases landed on June 11, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
PlanSnap versus Lockn: the parameters behind the verdict, then further details
ParameterPlanSnapLockn
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.5
Further details — not scored
Size47 MB8 MB
Age rating4+4+
DeveloperVihanti Digital Services Private LimitedLucas Mylon

Customer experience

PlanSnap

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Lockn

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PlanSnap

No in-app purchases

None

Lockn

No in-app purchases

Questions

Is PlanSnap free?
PlanSnap is free to download, with no in-app purchases.
Is Lockn free?
Lockn is free to download, with no in-app purchases.
Which has better reviews, PlanSnap or Lockn?
PlanSnap and Lockn are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do PlanSnap or Lockn have ads?
Neither PlanSnap nor Lockn shows ads.
Which is updated more often, PlanSnap or Lockn?
PlanSnap ships an update weekly, and Lockn every 2 months. Most recently, PlanSnap was updated on June 11, 2026 and Lockn on September 30, 2026.

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