KR 1 vs Function Battle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
KR 1
Lead a medieval state through political intrigue, warfare, and economic management. Engage in diplomacy, raise armies, and conquer territories to build your empire. Experience historical events and make strategic decisions to ensure your civilization's dominance.
- Political maneuvering
- Medieval warfare
- Empire building
- Diplomacy and alliances
- Economic management
- Spying and sabotage
- Historical events
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Kievan Rus’ is a strategy game with a focus on political maneuvering. Here war is just a tool of the trade. This game enables you to play as the ruler of Kievan Rus’, one of the mightiest states of the world of that time. The Middle Ages is a setting that is truly a treasure for any strategy game fan. In the game, there are 35 states, and Barbarians, who have their own territory and resources. However, the ruler’s way to domination is not going to be a walk in the park. Get ready for deadly wars and backstairs politics – you will be confronted by the most powerful states of the game world, including England that dominates seas, Balkan states (Poland, Hungary, Croatia and Serbia), and the Arab state of Syria, with a huge army at its disposal. So you think the Roman Empire has made great progress? Perhaps, you prefer European states, such as France and Scotland? Or it is Byzantium that you consider to be a good example? Let them know you are ready to fight head-to-head and build your own empire, and that you are a dictator and a strategist. Their aim is to advance their own civilization while preventing yours from doing so. Put your political foresight to the test and find out whether you are good at strategy and diplomacy – lead your country through ages. To succeed, engage in wars with your rivals. Raise your own army and fleet, declare wars or start fighting in them when they are in full swing. Deploy spies and send saboteurs to your enemy country to find out what they are going to do. Invade states, conquer lands and capture rare resources. A sagacious dictator is key to state policy success. Manage foreign affairs, conclude non-aggression pacts, and make suggestions to be considered by other states. Remember that diplomacy and well-thought-out policy are often more effective options than war. Don’t forget about state economic activities: produce food, and manufacture weapons for your army. Use researches to increase the amount of manufactured goods and military capability. However, a single civilization cannot produce everything, so you will have to trade with other states and buy rare resources and goods. Introduce new laws and make your citizens abide by them. You can establish the civilization religion of your choice. Appoint army and fleet commanders, and tax, trade, economy and construction chiefs. Separatism will not be tolerated: quell riots occurring in your state. Your empire will be mightiest, and diplomacy, weapons and economy will help you achieve it. The game uses real-life states that existed at that time, with real historic events. The large and detailed map will enable you to see information about your own territory and that of other countries. These are just the game basics: you can find out how much it offers only by playing it. The game does not require Internet connection, and you can play it anywhere you like. There is no set time limit for turns: you can choose the game pace to your liking. The geopolitical strategy set in the Middle Ages with a special focus on the Slavs is available on smartphones and tablets. It is a good way to spend time, as it combines entertainment and brain exercise. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Function Battle
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Aim with math. Write a function, fire the graph and knock out the other squad in this turn-based artillery game. Function Battle turns graphs into weapons. Type 0.25*x, sin(x) or x^2/40 on the math keypad, press FIRE and watch your curve fly across the battlefield. Bend it over walls, around pillars and onto the enemy. Miss, and you see exactly where your function went, so the next shot is better. PLAY YOUR WAY • Versus the computer: four difficulty levels, from friendly to ruthless. Works offline. • Campaign and practice lab: learn each kind of function one shot at a time, and see your curve before you fire. • Daily Challenge: a fresh match every day, with bonus Sparks for winning. • Pass & Play: two players on one phone, no account needed. • Online multiplayer: Quick Match, public rooms for up to 10 players (1v1, 2v2, 5v5 teams or free-for-all) and private rooms with a six-letter code for friends and classmates. A MATH GAME THAT DOESN'T FEEL LIKE HOMEWORK Linear, quadratic, trigonometric, exponential and logarithmic functions, fractions, powers, square roots and absolute values are all ammunition. It's graphing practice, algebra and trigonometry with a bang: great for students studying for tests, teachers looking for a classroom game and anyone who loves a puzzle. FAIR PLAY Skill decides every match. Nothing you earn or buy changes how a shot flies: no power-ups for sale, no energy bars, no forced ads. MAKE IT YOURS Colors, shapes, faces, hats, glasses, shot trails, body effects and emotes. Earn Sparks by winning, open chests (the odds are always shown) and spin the prize wheel. Watching an ad is always your choice. ALSO INSIDE • Save and rewatch replays of your best shots. • Play in 11 languages: English, Español, Português, Deutsch, Français, Italiano, Türkçe, हिन्दी, 日本語, 한국어, 繁體中文. • Accessibility: larger text, reduced motion, and separate sound, music and vibration settings. • Safer online play: quick reactions, mute, block and report, and clear community rules. Typed chat is off for players under 13. • Free to play. Accounts are optional: play as a guest straight away. Ads are voluntary rewarded videos only. They never interrupt a match.
Screenshots
Verdict
KR 1 and Function Battle are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. KR 1 sells 10 in-app purchases, starting at $0.99 per 7 days and Function Battle sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | KR 1 | Function Battle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (70 ratings) — better | — |
| Positive reviews | 71.7% of reviews | — |
| Number of ratings | 70 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 698 MB | 80 MB |
| Age rating | 9+ | 9+ |
| Developer | OXIWYLE LLC | Ross Reynolds |
In-app purchases
KR 1
- 7-Day Subscription7 Days trial$0.997 Days
- Gold subscription7 Days trial$1.997 Days
- +500 000 gold$0.99
- 600 crystals$0.99
- Disable ads$0.99
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- Pack$0.99
- Accelerated Time$0.99
- +10 000 gold per day$2.99
- Easy start for any state$4.99
- Gem Madness$9.99
Function Battle
- Handful of Sparks$1.99
- Welcome Pack$1.99
- Aurora Set$2.49
Show 6 moreShow fewer
- Solar Set$4.99
- Pouch of Sparks$4.99
- Collector's Pack$9.99
- Chest of Sparks$9.99
- Vault of Sparks$19.99
- Galaxy of Sparks$49.99









