Comparison

Postcodes & Postbox Search vs WaterNav

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

Head to head
About

Postcodes & Postbox Search

Quickly find postcodes and postboxes with this app. Search by address or map location, save favorites, and even access your current postcode on your Apple Watch. Ideal for deliveries, driving, or filling out forms.

Highlights
  • Postcode lookup
  • Postbox search
  • Search by address
  • Map search
  • Save favorite locations
  • Apple Watch integration
Read full description

Need a postcode or postbox fast? We’ve got you covered. Making deliveries or driving a cab? Filling out paperwork that needs your full postcode? Or maybe you’re trying to find the nearest postbox or post office? No worries. Just open the app and sort it in seconds. You can also search for a postcode by address or tap anywhere on the map to get the one you need. Save your favourite places too and look them up later when it suits you. Got an Apple Watch? Brilliant. Your current postcode is just a tap away, right on your wrist. Fun fact: Some British Overseas Territories have their own UK postcodes: • TDCU 1ZZ – Saint Helena, Ascension and Tristan da Cunha • BBND 1ZZ – British Indian Ocean Territory • BIQQ 1ZZ – British Antarctic Territory • FIQQ 1ZZ – Falkland Islands • GX11 1AA – Gibraltar • PCRN 1ZZ – Pitcairn Islands • SIQQ 1ZZ – South Georgia and the South Sandwich Islands • TKCA 1ZZ – Turks and Caicos Islands Please be aware that using this app will requite you to use a subscription.

About

WaterNav

This app provides offline waterway maps and navigation tools, displaying points of interest, locks, bridges, and closures. It offers route planning with customizable journey times and speed, and includes special features for River Canal Rescue members.

Highlights
  • Offline map access
  • Real-time GPS location tracking
  • Points of interest display
  • Waterway information (locks, bridges, closures)
  • Route planning with customizable options
  • Exclusive RCR member features
Features
Read full description

WaterNav is unique in that it has been developed so that you can access all date even without an active internet connection. (It works offline once the maps are downloaded) It monitors you location using the phones inbuilt GPS, giving your precise location on the map. The maps display thousands of continually updated points of interest (such as pubs, shops, vets, diesel, moorings, etc), as well as all the waterway information such as locks, bridges, turning points, etc, and canal closures. It is the essential towpath companions for boaters, ramblers, cyclists, or anyone else enjoying the waterways. The route planning options and enhanced options are available once you create an account (no charges or obligations) and with options of picking location, searching for a location or using your own current position it provides lots of flexibility. You can also chose journey times, lock delays and speed. River Canal Rescue members will automatically be granted access to a special RCR interface that will offer exclusive features. RCR members will be able to access their membership details, see their RCR history, log callouts, book services, and request additional works. They will also be able to utilise a new arrival aid system which will allow them to track their engineer in real time. The WaterNav App is in ongoing development (our inhouse developers will respond to all requests or issues - just remember it can take time to get issues updated). There are new updates and development of new features and we are resolving issues continually. ( so make sure you regularly update, and let us know if we can make things easier for you)

Screenshots

Postcodes & Postbox Search4 screens
WaterNav4 screens

Verdict

The call

The clearest difference is rating: Postcodes & Postbox Search at 3.7 against WaterNav's 3.2. Postcodes & Postbox Search also leads on review sentiment (45% vs 13%) and ratings volume (92 vs 6). WaterNav's advantage is in-app purchases (none vs 6) and update cadence (fortnightly vs every 4 months). 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. Postcodes & Postbox Search sells 6 in-app purchases, starting at $1.99 per 7 days. WaterNav asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Postcodes & Postbox Search holds the better App Store score, 3.7 against 3.2. That said, the two scores are not equally well evidenced: Postcodes & Postbox Search has 92 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 45% of Postcodes & Postbox Search's written reviews are positive against 13% of WaterNav's.

UpkeepUpdate frequency

Postcodes & Postbox Search ships an update every 4 months, WaterNav fortnightly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Postcodes & Postbox Search versus WaterNav: the parameters behind the verdict, then further details
ParameterPostcodes & Postbox SearchWaterNav
PriceFreeFree
Rating3.7 (92 ratings) — better3.2 (6 ratings)
Positive reviews44.8% of reviews — better12.9% of reviews
Number of ratings92 — better6
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.515 — better
Further details — not scored
Size219 MB74 MB
Age rating4+4+
DeveloperApp BakeryRiver Canal Rescue

Customer experience

Postcodes & Postbox Search

All ratings92 ratings
Positive64.1%
Neutral7.6%
Negative28.3%
Written reviews67 reviews
Positive44.8%
Neutral4.5%
Negative50.7%

WaterNav

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews62 reviews
Positive12.9%
Neutral21.0%
Negative66.1%

Bugs and requests

Postcodes & Postbox Search

Reported bugs

58 issues
  • All features hidden behind paywall
  • Subscription is forced
  • No free option anymore
  • Forced subscription
  • Subscription auto renewal
Show 53 more
  • 100% subscription
  • All functionality locked behind paywall
  • Cannot get past subscription screen
  • Force you to pay to use the app
  • Asterisk keeps spinning
  • No postcodes available
  • Impossible to use
  • Completely inaccurate
  • Useless for finding postboxes
  • Disappointing on the postbox function
  • Address in Cumbria, keeps bringing up dissimilar address
  • Doesn’t show anything for Royal Mail post box
  • This app does not work
  • No nearby priority box
  • Stopped Showing any Postboxes
  • Can’t find anything
  • Unhelpfully designed app
  • UX is lamentably awful
  • Obscure, multi-step process for basic info
  • Technical implementation is lamentable
  • Doesn’t show all post boxes
  • No info re collection time
  • Absolute waste of time
  • Only 4 out of 7 postboxes shown
  • No need for ads
  • Not finding the postcodes on some roads
  • App not working
  • Not giving out more than 3 digits of a postcode
  • WTF
  • Very bad
  • Very slow
  • Not working perfectly
  • Unreliable as a postbox finder
  • Two closest post boxes missing
  • Maps not loading
  • Incorrect Results
  • Can't get postcode right
  • Frustrating
  • Only found 1 postcode out of 3 correctly
  • Only showing the first part of the postcodes
  • Not impressed
  • No instructions as to what to do
  • Only gave me the first section
  • What's happened
  • Can only get the 1st part of the postcode
  • Failed app
  • Tried app standing next to post box, no post box nearby
  • Messed up app - fixed now!
  • Does what it says on the tin!!
  • No longer displays the map
  • Freezes on first post code after opening
  • Maps are not showing up
  • iOS 11 issues

Requested features

5 requests
  • Allow reduced usage option for existing downloads
  • Pay once deal for existing users
  • Go back to being free to use
  • Add time of collection for post boxes
  • Add street view of postboxes

WaterNav

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Postcodes & Postbox Search

Subscriptions3
  • Weekly Premium$1.997 Days
  • Monthly Premium3 Days trial$9.991 Month
  • Annual Premium Subscription$19.991 Year
One-time3
  • Starter$0.99
  • Ad Removal$3.99
  • Postcodes Enthusiast$3.99
None

WaterNav

No in-app purchases

Questions

Is Postcodes & Postbox Search free?
Postcodes & Postbox Search is free to download, with in-app purchases available.
Is WaterNav free?
WaterNav is free to download, with no in-app purchases.
Which has better reviews, Postcodes & Postbox Search or WaterNav?
Postcodes & Postbox Search is rated higher. Postcodes & Postbox Search averages 3.7 out of 5 from 92 ratings, while WaterNav averages 3.2 from 6 ratings.
Do Postcodes & Postbox Search or WaterNav have ads?
Neither Postcodes & Postbox Search nor WaterNav shows ads.
Which is updated more often, Postcodes & Postbox Search or WaterNav?
Postcodes & Postbox Search ships an update every 4 months, and WaterNav fortnightly. Most recently, Postcodes & Postbox Search was updated on November 1, 2026 and WaterNav on November 3, 2026.

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