NJFF vs Slipper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NJFF
This app provides essential information for hunters and anglers, including tide times, sunrise/sunset, moon phases, hunting seasons, and fishing spots. It also features tools for assessing game trophies and calculating fish weight.
- Tide, sunrise/sunset, and moon phase data
- Hunting seasons and species information
- NJFF shooting range and fishing spot directory
- Animal track identification
- Growing degree day calculation
- Antler scoring and fish weight calculators
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Noe av det du finner i NJFF'appen er: - Oversikt over flo/fjære, soloppgang/nedgang, månefaser - Oversikt over Norges jaktbare arter med bilder og jakttider - Oversikt over alle NJFF's skytebaner - Sportegnsoversikt med detaljerte sporrekker og avtrykk - Mørningsvarsel for beregning av antall døgngrader - Gevirbedømming, dommeroversikt og poengberegning - Lokkelyder! Nå helt gratis og like effektiv som før For fiskeren har vi: - Oversikt over Norges sportsfiskearter - En oversikt over NJFF-godkjente fiskeplasser - Kalkulator til å regne ut fiskens vekt - Kalkulator til å regne ut fiskens k-faktor - Oversikt over båtutsettingsplasser og båtramper - Oversikt over handicap-tilrettelagte fiskeplasser
Slipper
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It should be super simple to make smart electricity choices. Slipper is an independent electricity app that helps you make the right decisions—whether it’s your power contract, grid fees, or government support. We connect to your energy data and understand your consumption. When something is worth acting on, you’ll be notified. No need to monitor it yourself. Here’s what you get in the app: • Smart energy control • Live monitoring of all electricity contracts • Alerts when it’s beneficial to switch providers • See how much you’ve saved • View electricity prices including grid fees • Electricity prices directly from Nord Pool • Your consumption data from Elhub • Slipper Community – suggest and vote on new features Always on your side: • No ads – not even in the free version • No partnerships with electricity providers • We never sell your data We focus on one thing: helping you make better electricity decisions. Over 100,000 people already use Slipper. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://slipper.no/personvern
Screenshots
Verdict
The clearest difference is update cadence: Slipper at every 3 weeks against NJFF's every 3 months. On price, ads, in-app purchases 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
Both are free to download. NJFF sells 4 one-off in-app purchases and Slipper sells 17 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
NJFF ships an update every 3 months, Slipper every 3 weeks. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.
| Parameter | NJFF | Slipper |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 50 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Adept Mobile AS | Slipper AS |
In-app purchases
NJFF
- NJFF Hunting Calls$2.99
- Hunting Call School$2.99
- Nature Log$2.99
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- Head Home Compass$2.99
Slipper
- Norges Hytteforbund - Månedlig$1.991 Month
- Grunderklubben - Månedlig7 Days trial$1.991 Month
- Sparestemning - Månedlig3 Months trial$1.991 Month
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- Halv Pris Årlig$11.991 Year
- Norges Hytteforbund - Årlig$14.991 Year
- Styretavla - Yearly1 Month trial$14.991 Year
- Tekna - Årlig1 Year trial$14.991 Year
- Grunderklubben - Årlig1 Month trial$14.991 Year
- Andras og Camilla - Årlig1 Month trial$19.991 Year
- Partner - Årlig/Månedlig1 Month trial$19.991 Year
- Årlig$22.991 Year
- Alumni - Årlig3 Months trial$22.991 Year
- Studentkortet - Årlig3 Months trial$22.991 Year
- Pengesnakk - Årlig3 Months trial$22.991 Year
- ABC - Årlig1 Year trial$22.991 Year
- Sparestemning - Årlig3 Months trial$22.991 Year
- Støttemedlemskap$39.991 Year
